Enhanced DRX and Control Channel

ABSTRACT

A wireless device receives first configuration parameter(s) indicating that a first search space and a second search space are used together for reception of DCI and a second configuration parameter indicating a value of a DRX timer. The wireless device receives first DCI based on: monitoring in a CORESET based on the first search space and in first symbol(s), and monitoring in a CORESET based on the second search space and in second symbol(s) that are after the first symbol(s). The wireless device may start the DRX timer with the value in a third symbol that is after the second symbol(s).

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. application Ser. No.17/571,703, filed Jan. 10, 2022, which is a continuation of U.S.application Ser. No. 17/392,149, filed Aug. 2, 2021, which claims thebenefit of U.S. Provisional Application No. 63/060,040, filed Aug. 1,2020, which is hereby incorporated by reference in its entirety.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A and FIG. 1B show examples of mobile communications systems inaccordance with several of various embodiments of the presentdisclosure.

FIG. 2A and FIG. 2B show examples of user plane and control planeprotocol layers in accordance with several of various embodiments of thepresent disclosure.

FIG. 3 shows example functions and services offered by protocol layersin a user plane protocol stack in accordance with several of variousembodiments of the present disclosure.

FIG. 4 shows example flow of packets through the protocol layers inaccordance with several of various embodiments of the presentdisclosure.

FIG. 5A shows example mapping of channels between layers of the protocolstack and different physical signals in downlink in accordance withseveral of various embodiments of the present disclosure.

FIG. 5B shows example mapping of channels between layers of the protocolstack and different physical signals in uplink in accordance withseveral of various embodiments of the present disclosure.

FIG. 6 shows example physical layer processes for signal transmission inaccordance with several of various embodiments of the presentdisclosure.

FIG. 7 shows examples of RRC states and RRC state transitions inaccordance with several of various embodiments of the presentdisclosure.

FIG. 8 shows an example time domain transmission structure in NR bygrouping OFDM symbols into slots, subframes and frames in accordancewith several of various embodiments of the present disclosure.

FIG. 9 shows an example of time-frequency resource grid in accordancewith several of various embodiments of the present disclosure.

FIG. 10 shows example adaptation and switching of bandwidth parts inaccordance with several of various embodiments of the presentdisclosure.

FIG. 11A shows example arrangements of carriers in carrier aggregationin accordance with several of various embodiments of the presentdisclosure.

FIG. 11B shows examples of uplink control channel groups in accordancewith several of various embodiments of the present disclosure.

FIG. 12A, FIG. 12B and FIG. 12C show example random access processes inaccordance with several of various embodiments of the presentdisclosure.

FIG. 13A shows example time and frequency structure of SSBs and theirassociations with beams in accordance with several of variousembodiments of the present disclosure.

FIG. 13B shows example time and frequency structure of CSI-RSs and theirassociation with beams in accordance with several of various embodimentsof the present disclosure.

FIG. 14A, FIG. 14B and FIG. 14C show example beam management processesin accordance with several of various embodiments of the presentdisclosure.

FIG. 15 shows example components of a wireless device and a base stationthat are in communication via an air interface in accordance withseveral of various embodiments of the present disclosure.

FIG. 16 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 17 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 18 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 19 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 20 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 21 shows an example MAC CE format as per an aspect of an embodimentof the present disclosure.

FIG. 22 shows an example MAC CE format as per an aspect of an embodimentof the present disclosure.

FIG. 23 shows an example MAC CE format as per an aspect of an embodimentof the present disclosure.

FIG. 24 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 25 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 26 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 27 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 28 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 29 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 30 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 31 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 32 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 33 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 34 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 35 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 36 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 37 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 38 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 39 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 40 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 41 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 42 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 43 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 44 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 45 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 46 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 47 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 48 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 49 shows an example process as per an aspect of an embodiment ofthe present disclosure.

FIG. 50 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure.

FIG. 51 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure.

FIG. 52 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure.

FIG. 53 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure.

FIG. 54 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure.

FIG. 55 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure.

FIG. 56 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure.

FIG. 57 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure.

FIG. 58 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure.

DETAILED DESCRIPTION

The exemplary embodiments of the disclosed technology enable processesfor a wireless device and/or one or more base stations for controlchannel transmission enhancement. The exemplary disclosed embodimentsmay be implemented in the technical field of wireless communicationsystems. More particularly, the embodiment of the disclosed technologymay relate to enhancement of configuration signaling and control channeltransmission processes to enhance the reliability of control channeltransmission.

The devices and/or nodes of the mobile communications system disclosedherein may be implemented based on various technologies and/or variousreleases/versions/amendments of a technology. The various technologiesinclude various releases of long-term evolution (LTE) technologies,various releases of 5G new radio (NR) technologies, various wirelesslocal area networks technologies and/or a combination thereof and/oralike. For example, a base station may support a given technology andmay communicate with wireless devices with different characteristics.The wireless devices may have different categories that define theircapabilities in terms of supporting various features. The wirelessdevice with the same category may have different capabilities. Thewireless devices may support various technologies such as variousreleases of LTE technologies, various releases of 5G NR technologiesand/or a combination thereof and/or alike. At least some of the wirelessdevices in the mobile communications system of the present disclosuremay be stationary or almost stationary. In this disclosure, the terms“mobile communications system” and “wireless communications system” maybe used interchangeably.

FIG. 1A shows an example of a mobile communications system 100 inaccordance with several of various embodiments of the presentdisclosure. The mobile communications system 100 may be, for example,run by a mobile network operator (MNO) or a mobile virtual networkoperator (MVNO). The mobile communications system 100 may be a publicland mobile network (PLMN) run by a network operator providing a varietyof service including voice, data, short messaging service (SMS),multimedia messaging service (MMS), emergency calls, etc. The mobilecommunications system 100 includes a core network (CN) 106, a radioaccess network (RAN) 104 and at least one wireless device 102.

The CN 106 connects the RAN 104 to one or more external networks (e.g.,one or more data networks such as the Internet) and is responsible forfunctions such as authentication, charging and end-to-end connectionestablishment. Several radio access technologies (RATs) may be served bythe same CN 106.

The RAN 104 may implement a RAT and may operate between the at least onewireless device 102 and the CN 106. The RAN 104 may handle radio relatedfunctionalities such as scheduling, radio resource control, modulationand coding, multi-antenna transmissions and retransmission protocols.The wireless device and the RAN may share a portion of the radiospectrum by separating transmissions from the wireless device to the RANand the transmissions from the RAN to the wireless device. The directionof the transmissions from the wireless device to the RAN is known as theuplink and the direction of the transmissions from the RAN to thewireless device is known as the downlink. The separation of uplink anddownlink transmissions may be achieved by employing a duplexingtechnique. Example duplexing techniques include frequency divisionduplexing (FDD), time division duplexing (TDD) or a combination of FDDand TDD.

In this disclosure, the term wireless device may refer to a device thatcommunicates with a network entity or another device using wirelesscommunication techniques. The wireless device may be a mobile device ora non-mobile (e.g., fixed) device. Examples of the wireless deviceinclude cellular phone, smart phone, tablet, laptop computer, wearabledevice (e.g., smart watch, smart shoe, fitness trackers, smart clothing,etc.), wireless sensor, wireless meter, extended reality (XR) devicesincluding augmented reality (AR) and virtual reality (VR) devices,Internet of Things (IoT) device, vehicle to vehicle communicationsdevice, road-side units (RSU), automobile, relay node or any combinationthereof. In some examples, the wireless device (e.g., a smart phone,tablet, etc.) may have an interface (e.g., a graphical user interface(GUI)) for configuration by an end user. In some examples, the wirelessdevice (e.g., a wireless sensor device, etc.) may not have an interfacefor configuration by an end user. The wireless device may be referred toas a user equipment (UE), a mobile station (MS), a subscriber unit, ahandset, an access terminal, a user terminal, a wireless transmit andreceive unit (WTRU) and/or other terminology.

The at least one wireless device may communicate with at least one basestation in the RAN 104. In this disclosure, the term base station mayencompass terminologies associated with various RATs. For example, abase station may be referred to as a Node B in a 3G cellular system suchas Universal Mobile Telecommunication Systems (UMTS), an evolved Node B(eNB) in a 4G cellular system such as evolved universal terrestrialradio access (E-UTRA), a next generation eNB (ng-eNB), a Next GenerationNode B (gNB) in NR and/or a 5G system, an access point (AP) in Wi-Fiand/or other wireless local area networks. A base station may bereferred to as a remote radio head (RRH), a baseband unit (BBU) inconnection with one or more RRHs, a repeater or relay for coverageextension and/or any combination thereof. In some examples, all protocollayers of a base station may be implemented in one unit. In someexample, some of the protocol layers (e.g., upper layers) of the basestation may be implemented in a first unit (e.g., a central unit (CU))and some other protocol layer (e.g., lower layers) may be implemented inone or more second units (e.g., distributed units (DUs)).

A base station in the RAN 104 includes one or more antennas tocommunicate with the at least one wireless device. The base station maycommunicate with the at least one wireless device using radio frequency(RF) transmissions and receptions via RF transceivers. The base stationantennas may control one or more cells (or sectors). The size and/orradio coverage area of a cell may depend on the range that transmissionsby a wireless device can be successfully received by the base stationwhen the wireless device transmits using the RF frequency of the cell.The base station may be associated with cells of various sizes. At agiven location, the wireless device may be in coverage area of a firstcell of the base station and may not be in coverage area of a secondcell of the base station depending on the sizes of the first cell andthe second cell.

A base station in the RAN 104 may have various implementations. Forexample, a base station may be implemented by connecting a BBU (or a BBUpool) coupled to one or more RRHs and/or one or more relay nodes toextend the cell coverage. The BBU pool may be located at a centralizedsite like a cloud or data center. The BBU pool may be connected to aplurality of RRHs that control a plurality of cells. The combination ofBBU with the one or more RRHs may be referred to as a centralized orcloud RAN (C-RAN) architecture. In some implementations, the BBUfunctions may be implemented on virtual machines (VMs) on servers at acentralized location. This architecture may be referred to as virtualRAN (vRAN). All, most or a portion of the protocol layer functions(e.g., all or portions of physical layer, medium access control (MAC)layer and/or higher layers) may be implemented at the BBU pool and theprocessed data may be transmitted to the RRHs for further processingand/or RF transmission. The links between the BBU pool and the RRHs maybe referred to as fronthaul.

In some deployment scenarios, the RAN 104 may include macrocell basestations with high transmission power levels and large coverage areas.In other deployment scenarios, the RAN 104 may include base stationsthat employ different transmission power levels and/or have cells withdifferent coverage areas. For example, some base station may bemacrocell base stations with high transmission powers and/or largecoverage areas and other base station may be small cell base stationswith comparatively smaller transmission powers and/or coverage areas. Insome deployment scenarios, a small cell base station may have coveragethat is within or has overlap with coverage area of a macrocell basestation. A wireless device may communicate with the macrocell basestation while within the coverage area of the macrocell base station.For additional capacity, the wireless device may communicate with boththe macrocell base station and the small cell base station while in theoverlapped coverage area of the macrocell base station and the smallcell base station. Depending on their coverage areas, a small cell basestation may be referred to as a microcell base station, a picocell basestation, a femtocell base station or a home base station.

Different standard development organizations (SDOs) have specified, ormay specify in future, mobile communications systems that have similarcharacteristics as the mobile communications system 100 of FIG. 1A. Forexample, the Third-Generation Partnership Project (3GPP) is a group ofSDOs that provides specifications that define 3GPP technologies formobile communications systems that are akin to the mobile communicationssystem 100. The 3GPP has developed specifications for third generation(3G) mobile networks, fourth generation (4G) mobile networks and fifthgeneration (5G) mobile networks. The 3G, 4G and 5G networks are alsoknown as Universal Mobile Telecommunications System (UMTS), Long TermEvolution (LTE) and 5G system (5GS), respectively. In this disclosure,embodiments are described with respect to the RAN implemented in a 3GPP5G mobile network that is also referred to as next generation RAN(NG-RAN). The embodiments may also be implemented in other mobilecommunications systems such as 3G or 4G mobile networks or mobilenetworks that may be standardized in future such as sixth generation(6G) mobile networks or mobile networks that are implemented bystandards bodies other than 3GPP. The NG-RAN may be based on a new RATknown as new radio (NR) and/or other radio access technologies such asLTE and/or non-3GPP RATs.

FIG. 1B shows an example of a mobile communications system 110 inaccordance with several of various embodiments of the presentdisclosure. The mobile communications system 110 of FIG. 1B is anexample of a 5G mobile network and includes a 5G CN (5G-CN) 130, anNG-RAN 120 and UEs (collectively 112 and individually UE 112A and UE112B). The 5G-CN 130, the NG-RAN 120 and the UEs 112 of FIG. 1B operatesubstantially alike the CN 106, the RAN 104 and the at least onewireless device 102, respectively, as described for FIG. 1A.

The 5G-CN 130 of FIG. 1B connects the NG-RAN 120 to one or more externalnetworks (e.g., one or more data networks such as the Internet) and isresponsible for functions such as authentication, charging andend-to-end connection establishment. The 5G-CN has new enhancementscompared to previous generations of CNs (e.g., evolved packet core (EPC)in the 4G networks) including service-based architecture, support fornetwork slicing and control plane/user plane split. The service-basedarchitecture of the 5G-CN provides a modular framework based on serviceand functionalities provided by the core network wherein a set ofnetwork functions are connected via service-based interfaces. Thenetwork slicing enables multiplexing of independent logical networks(e.g., network slices) on the same physical network infrastructure. Forexample, a network slice may be for mobile broadband applications withfull mobility support and a different network slice may be fornon-mobile latency-critical applications such as industry automation.The control plane/user plane split enables independent scaling of thecontrol plane and the user plane. For example, the control planecapacity may be increased without affecting the user plane of thenetwork.

The 5G-CN 130 of FIG. 1B includes an access and mobility managementfunction (AMF) 132 and a user plane function (UPF) 134. The AMF 132 maysupport termination of non-access stratum (NAS) signaling, NAS signalingsecurity such as ciphering and integrity protection, inter-3GPP accessnetwork mobility, registration management, connection management,mobility management, access authentication and authorization andsecurity context management. The NAS is a functional layer between a UEand the CN and the access stratum (AS) is a functional layer between theUE and the RAN. The UPF 134 may serve as an interconnect point betweenthe NG-RAN and an external data network. The UPF may support packetrouting and forwarding, packet inspection and Quality of Service (QoS)handling and packet filtering. The UPF may further act as a ProtocolData Unit (PDU) session anchor point for mobility within and betweenRATs.

The 5G-CN 130 may include additional network functions (not shown inFIG. 1B) such as one or more Session Management Functions (SMFs), aPolicy Control Function (PCF), a Network Exposure Function (NEF), aUnified Data Management (UDM), an Application Function (AF), and/or anAuthentication Server Function (AUSF). These network functions alongwith the AMF 132 and UPF 134 enable a service-based architecture for the5G-CN.

The NG-RAN 120 may operate between the UEs 112 and the 5G-CN 130 and mayimplement one or more RATs. The NG-RAN 120 may include one or more gNBs(e.g., gNB 122A or gNB 122B or collectively gNBs 122) and/or one or moreng-eNBs (e.g., ng-eNB 124A or ng-eNB 124B or collectively ng-eNBs 124).The general terminology for gNBs 122 and/or an ng-eNBs 124 is a basestation and may be used interchangeably in this disclosure. The gNBs 122and the ng-eNBs 124 may include one or more antennas to communicate withthe UEs 112. The one or more antennas of the gNBs 122 or ng-eNBs 124 maycontrol one or more cells (or sectors) that provide radio coverage forthe UEs 112.

A gNB and/or an ng-eNB of FIG. 1B may be connected to the 5G-CN 130using an NG interface. A gNB and/or an ng-eNB may be connected withother gNBs and/or ng-eNBs using an Xn interface. The NG or the Xninterfaces are logical connections that may be established using anunderlying transport network. The interface between a UE and a gNB orbetween a UE and an ng-eNBs may be referred to as the Uu interface. Aninterface (e.g., Uu, NG or Xn) may be established by using a protocolstack that enables data and control signaling exchange between entitiesin the mobile communications system of FIG. 1B. When a protocol stack isused for transmission of user data, the protocol stack may be referredto as user plane protocol stack. When a protocol stack is used fortransmission of control signaling, the protocol stack may be referred toas control plane protocol stack. Some protocol layer may be used in bothof the user plane protocol stack and the control plane protocol stackwhile other protocol layers may be specific to the user plane or controlplane.

The NG interface of FIG. 1B may include an NG-User plane (NG-U)interface between a gNB and the UPF 134 (or an ng-eNB and the UPF 134)and an NG-Control plane (NG-C) interface between a gNB and the AMF 132(or an ng-eNB and the AMF 132). The NG-U interface may providenon-guaranteed delivery of user plane PDUs between a gNB and the UPF oran ng-eNB and the UPF. The NG-C interface may provide services such asNG interface management, UE context management, UE mobility management,transport of NAS messages, paging, PDU session management, configurationtransfer and/or warning message transmission.

The UEs 112 and a gNB may be connected using the Uu interface and usingthe NR user plane and control plane protocol stack. The UEs 112 and anng-eNB may be connected using the Uu interface using the LTE user planeand control plane protocol stack.

In the example mobile communications system of FIG. 1B, a 5G-CN isconnected to a RAN comprised of 4G LTE and/or 5G NR RATs. In otherexample mobile communications systems, a RAN based on the 5G NR RAT maybe connected to a 4G CN (e.g., EPC). For example, earlier releases of 5Gstandards may support a non-standalone mode of operation where a NRbased RAN is connected to the 4G EPC. In an example non-standalone mode,a UE may be connected to both a 5G NR gNB and a 4G LTE eNB (e.g., ang-eNB) and the control plane functionalities (such as initial access,paging and mobility) may be provided through the 4G LTE eNB. In astandalone of operation, the 5G NR gNB is connected to a 5G-CN and theuser plane and the control plane functionalities are provided by the 5GNR gNB.

FIG. 2A shows an example of the protocol stack for the user plan of anNR Uu interface in accordance with several of various embodiments of thepresent disclosure. The user plane protocol stack comprises fiveprotocol layers that terminate at the UE 200 and the gNB 210. The fiveprotocol layers, as shown in FIG. 2A, include physical (PHY) layerreferred to as PHY 201 at the UE 200 and PHY 211 at the gNB 210, mediumaccess control (MAC) layer referred to as MAC 202 at the UE 200 and MAC212 at the gNB 210, radio link control (RLC) layer referred to as RLC203 at the UE 200 and RLC 213 at the gNB 210, packet data convergenceprotocol (PDCP) layer referred to as PDCP 204 at the UE 200 and PDCP 214at the gNB 210, and service data application protocol (SDAP) layerreferred to as SDAP 205 at the UE 200 and SDAP 215 at the gNB 210. ThePHY layer, also known as layer 1 (L1), offers transport services tohigher layers. The other four layers of the protocol stack (MAC, RLC,PDCP and SDAP) are collectively known as layer 2 (L2).

FIG. 2B shows an example of the protocol stack for the control plan ofan NR Uu interface in accordance with several of various embodiments ofthe present disclosure. Some of the protocol layers (PHY, MAC, RLC andPDCP) are common between the user plane protocol stack shown in FIG. 2Aand the control plan protocol stack. The control plane protocol stackalso includes the RRC layer, referred to RRC 206 at the UE 200 and RRC216 at the gNB 210, that also terminates at the UE 200 and the gNB 210.In addition, the control plane protocol stack includes the NAS layerthat terminates at the UE 200 and the AMF 220. In FIG. 2B, the NAS layeris referred to as NAS 207 at the UE 200 and NAS 227 at the AMF 220.

FIG. 3 shows example functions and services offered to other layers by alayer in the NR user plane protocol stack of FIG. 2A in accordance withseveral of various embodiments of the present disclosure. For example,the SDAP layer of FIG. 3 (shown in FIG. 2A as SDAP 205 at the UE sideand SDAP 215 at the gNB side) may perform mapping and de-mapping of QoSflows to data radio bearers. The mapping and de-mapping may be based onQoS (e.g., delay, throughput, jitter, error rate, etc.) associated witha QoS flow. A QoS flow may be a QoS differentiation granularity for aPDU session which is a logical connection between a UE 200 and a datanetwork. A PDU session may contain one or more QoS flows. The functionsand services of the SDAP layer include mapping and de-mapping betweenone or more QoS flows and one or more data radio bearers. The SDAP layermay also mark the uplink and/or downlink packets with a QoS flow ID(QFI).

The PDCP layer of FIG. 3 (shown in FIG. 2A as PDCP 204 at the UE sideand PDCP 214 at the gNB side) may perform header compression anddecompression (e.g., using Robust Header Compression (ROHC) protocol) toreduce the protocol header overhead, ciphering and deciphering andintegrity protection and verification to enhance the security over theair interface, reordering and in-order delivery of packets anddiscarding of duplicate packets. A UE may be configured with one PDCPentity per bearer.

In an example scenario not shown in FIG. 3, a UE may be configured withdual connectivity and may connect to two different cell groups providedby two different base stations. For example, a base station of the twobase stations may be referred to as a master base station and a cellgroup provided by the master base station may be referred to as a mastercell group (MCG). The other base station of the two base stations may bereferred to as a secondary base station and the cell group provided bythe secondary base station may be referred to as a secondary cell group(SCG). A bearer may be configured for the UE as a split bearer that maybe handled by the two different cell groups. The PDCP layer may performrouting of packets corresponding to a split bearer to and/or from RLCchannels associated with the cell groups.

In an example scenario not shown in FIG. 3, a bearer of the UE may beconfigured (e.g., with control signaling) with PDCP packet duplication.A bearer configured with PDCP duplication may be mapped to a pluralityof RLC channels each corresponding to different one or more cells. ThePDCP layer may duplicate packets of the bearer configured with PDCPduplication and the duplicated packets may be mapped to the differentRLC channels. With PDCP packet duplication, the likelihood of correctreception of packets increases thereby enabling higher reliability.

The RLC layer of FIG. 3 (shown in FIG. 2A as RLC 203 at the UE side andRLC 213 at the gNB side) provides service to upper layers in the form ofRLC channels. The RLC layer may include three transmission modes:transparent mode (TM), Unacknowledged mode (UM) and Acknowledged mode(AM). The RLC layer may perform error correction through automaticrepeat request (ARQ) for the AM transmission mode, segmentation of RLCservice data units (SDUs) for the AM and UM transmission modes andre-segmentation of RLC SDUs for AM transmission mode, duplicatedetection for the AM transmission mode, RLC SDU discard for the AM andUM transmission modes, etc. The UE may be configured with one RLC entityper RLC channel.

The MAC layer of FIG. 3 (shown in FIG. 2A as MAC 202 at the UE side andMAC 212 at the gNB side) provides services to the RLC layer in form oflogical channels. The MAC layer may perform mapping between logicalchannels and transport channels, multiplexing/demultiplexing of MAC SDUsbelonging to one or more logical channels into/from transport blocks(TBs) delivered to/from the physical layer on transport channels,reporting of scheduling information, error correction through hybridautomatic repeat request (HARQ), priority handling between UEs by meansof dynamic scheduling, priority handling between logical channels of oneUE by means of logical channel prioritization and/or padding. In case ofcarrier aggregation, a MAC entity may comprise one HARQ entity per cell.A MAC entity may support multiple numerologies, transmission timings andcells. The control signaling may configure logical channels with mappingrestrictions. The mapping restrictions in logical channel prioritizationmay control the numerology(ies), cell(s), and/or transmissiontiming(s)/duration(s) that a logical channel may use.

The PHY layer of FIG. 3 (shown in FIG. 2A as PHY 201 at the UE side andPHY 211 at the gNB side) provides transport services to the MAC layer inform of transport channels. The physical layer may handlecoding/decoding, HARQ soft combining, rate matching of a coded transportchannel to physical channels, mapping of coded transport channels tophysical channels, modulation and demodulation of physical channels,frequency and time synchronization, radio characteristics measurementsand indication to higher layers, RF processing, and mapping to antennasand radio resources.

FIG. 4 shows example processing of packets at different protocol layersin accordance with several of various embodiments of the presentdisclosure. In this example, three Internet Protocol (IP) packets thatare processed by the different layers of the NR protocol stack. The termSDU shown in FIG. 4 is the data unit that is entered from/to a higherlayer. In contrast, a protocol data unit (PDU) is the data unit that isentered to/from a lower layer. The flow of packets in FIG. 4 is fordownlink. An uplink data flow through layers of the NR protocol stack issimilar to FIG. 4. In this example, the two leftmost IP packets aremapped by the SDAP layer (shown as SDAP 205 and SDAP 215 in FIG. 2A) toradio bearer 402 and the rightmost packet is mapped by the SDAP layer tothe radio bearer 404. The SDAP layer adds SDAP headers to the IP packetswhich are entered into the PDCP layer as PDCP SDUs. The PDCP layer isshown as PDCP 204 and PDCP 214 in FIG. 2A. The PDCP layer adds the PDCPheaders to the PDCP SDUs which are entered into the RLC layer as RLCSDUs. The RLC layer is shown as RLC 203 and RLC 213 in FIG. 2A. An RLCSDU may be segmented at the RLC layer. The RLC layer adds RLC headers tothe RLC SDUs after segmentation (if segmented) which are entered intothe MAC layer as MAC SDUs. The MAC layer adds the MAC headers to the MACSDUs and multiplexes one or more MAC SDUs to form a PHY SDU (alsoreferred to as a transport block (TB) or a MAC PDU).

In FIG. 4, the MAC SDUs are multiplexed to form a transport block. TheMAC layer may multiplex one or more MAC control elements (MAC CEs) withzero or more MAC SDUs to form a transport block. The MAC CEs may also bereferred to as MAC commands or MAC layer control signaling and may beused for in-band control signaling. The MAC CEs may be transmitted by abase station to a UE (e.g., downlink MAC CEs) or by a UE to a basestation (e.g., uplink MAC CEs). The MAC CEs may be used for transmissionof information useful by a gNB for scheduling (e.g., buffer statusreport (BSR) or power headroom report (PHR)), activation/deactivation ofone or more cells, activation/deactivation of configured radio resourcesfor or one or more processes, activation/deactivation of one or moreprocesses, indication of parameters used in one or more processes, etc.

FIG. 5A and FIG. 5B show example mapping between logical channels,transport channels and physical channels for downlink and uplink,respectively in accordance with several of various embodiments of thepresent disclosure. As discussed before, the MAC layer provides servicesto higher layer in the form of logical channels. A logical channel maybe classified as a control channel, if used for transmission of controland/or configuration information, or a traffic channel if used fortransmission of user data. Example logical channels in NR includeBroadcast Control Channel (BCCH) used for transmission of broadcastsystem control information, Paging Control Channel (PCCH) used forcarrying paging messages for wireless devices with unknown locations,Common Control Channel (CCCH) used for transmission of controlinformation between UEs and network and for UEs that have no RRCconnection with the network, Dedicated Control Channel (DCCH) which is apoint-to-point bi-directional channel for transmission of dedicatedcontrol information between a UE that has an RRC connection and thenetwork and Dedicated Traffic Channel (DTCH) which is point-to-pointchannel, dedicated to one UE, for the transfer of user information andmay exist in both uplink and downlink.

As discussed before, the PHY layer provides services to the MAC layerand higher layers in the form of transport channels. Example transportchannels in NR include Broadcast Channel (BCH) used for transmission ofpart of the BCCH referred to as master information block (MIB), DownlinkShared Channel (DL-SCH) used for transmission of data (e.g., from DTCHin downlink) and various control information (e.g., from DCCH and CCCHin downlink and part of the BCCH that is not mapped to the BCH), UplinkShared Channel (UL-SCH) used for transmission of uplink data (e.g., fromDTCH in uplink) and control information (e.g., from CCCH and DCCH inuplink) and Paging Channel (PCH) used for transmission of paginginformation from the PCCH. In addition, Random Access Channel (RACH) isa transport channel used for transmission of random access preambles.The RACH does not carry a transport block. Data on a transport channel(except RACH) may be organized in transport blocks, wherein one or moretransport blocks may be transmitted in a transmission time interval(TTI).

The PHY layer may map the transport channels to physical channels. Aphysical channel may correspond to time-frequency resources that areused for transmission of information from one or more transportchannels. In addition to mapping transport channels to physicalchannels, the physical layer may generate control information (e.g.,downlink control information (DCI) or uplink control information (UCI))that may be carried by the physical channels. Example DCI includescheduling information (e.g., downlink assignments and uplink grants),request for channel state information report, power control command,etc. Example UCI include HARQ feedback indicating correct or incorrectreception of downlink transport blocks, channel state informationreport, scheduling request, etc. Example physical channels in NR includea Physical Broadcast Channel (PBCH) for carrying information from theBCH, a Physical Downlink Shared Channel (PDSCH) for carrying informationform the PCH and the DL-SCH, a Physical Downlink Control Channel (PDCCH)for carrying DCI, a Physical Uplink Shared Channel (PUSCH) for carryinginformation from the UL-SCH and/or UCI, a Physical Uplink ControlChannel (PUCCH) for carrying UCI and Physical Random Access Channel(PRACH) for transmission of RACH (e.g., random access preamble).

The PHY layer may also generate physical signals that are not originatedfrom higher layers. As shown in FIG. 5A, example downlink physicalsignals include Demodulation Reference Signal (DM-RS), Phase TrackingReference Signal (PT-RS), Channel State Information Reference Signal(CSI-RS), Primary Synchronization Signal (PSS) and SecondarySynchronization Signal (SSS). As shown in FIG. 5B, example uplinkphysical signals include DM-RS, PT-RS and sounding reference signal(SRS).

As indicated earlier, some of the protocol layers (PHY, MAC, RLC andPDCP) of the control plane of an NR Uu interface, are common between theuser plane protocol stack (as shown in FIG. 2A) and the control planeprotocol stack (as shown in FIG. 2B). In addition to PHY, MAC, RLC andPDCP, the control plane protocol stack includes the RRC protocol layerand the NAS protocol layer.

The NAS layer, as shown in FIG. 2B, terminates at the UE 200 and the AMF220 entity of the 5G-C 130. The NAS layer is used for core networkrelated functions and signaling including registration, authentication,location update and session management. The NAS layer uses services fromthe AS of the Uu interface to transmit the NAS messages.

The RRC layer, as shown in FIG. 2B, operates between the UE 200 and thegNB 210 (more generally NG-RAN 120) and may provide services andfunctions such as broadcast of system information (SI) related to AS andNAS as well as paging initiated by the 5G-C 130 or NG-RAN 120. Inaddition, the RRC layer is responsible for establishment, maintenanceand release of an RRC connection between the UE 200 and the NG-RAN 120,carrier aggregation configuration (e.g., addition, modification andrelease), dual connectivity configuration (e.g., addition, modificationand release), security related functions, radio bearerconfiguration/maintenance and release, mobility management (e.g.,maintenance and context transfer), UE cell selection and reselection,inter-RAT mobility, QoS management functions, UE measurement reportingand control, radio link failure (RLF) detection and NAS messagetransfer. The RRC layer uses services from PHY, MAC, RLC and PDCP layersto transmit RRC messages using signaling radio bearers (SRBs). The SRBsare mapped to CCCH logical channel during connection establishment andto DCCH logical channel after connection establishment.

FIG. 6 shows example physical layer processes for signal transmission inaccordance with several of various embodiments of the presentdisclosure. Data and/or control streams from MAC layer may beencoded/decoded to offer transport and control services over the radiotransmission link. For example, one or more (e.g., two as shown in FIG.6) transport blocks may be received from the MAC layer for transmissionvia a physical channel (e.g., a physical downlink shared channel or aphysical uplink shared channel). A cyclic redundancy check (CRC) may becalculated and attached to a transport block in the physical layer. TheCRC calculation may be based on one or more cyclic generatorpolynomials. The CRC may be used by the receiver for error detection.Following the transport block CRC attachment, a low-density parity check(LDPC) base graph selection may be performed. In example embodiments,two LDPC base graphs may be used wherein a first LDPC base graph may beoptimized for small transport blocks and a second LDPC base graph may beoptimized for comparatively larger transport blocks.

The transport block may be segmented into code blocks and code block CRCmay be calculated and attached to a code block. A code block may be LDPCcoded and the LDPC coded blocks may be individually rate matched. Thecode blocks may be concatenated to create one or more codewords. Thecontents of a codeword may be scrambled and modulated to generate ablock of complex-valued modulation symbols. The modulation symbols maybe mapped to a plurality of transmission layers (e.g., multiple-inputmultiple-output (MIMO) layers) and the transmission layers may besubject to transform precoding and/or precoding. The precodedcomplex-valued symbols may be mapped to radio resources (e.g., resourceelements). The signal generator block may create a baseband signal andup-convert the baseband signal to a carrier frequency for transmissionvia antenna ports. The signal generator block may employ mixers, filtersand/or other radio frequency (RF) components prior to transmission viathe antennas. The functions and blocks in FIG. 6 are illustrated asexamples and other mechanisms may be implemented in various embodiments.

FIG. 7 shows examples of RRC states and RRC state transitions at a UE inaccordance with several of various embodiments of the presentdisclosure. A UE may be in one of three RRC states: RRC_IDLE 702, RRCINACTIVE 704 and RRC_CONNECTED 706. In RRC_IDLE 702 state, no RRCcontext (e.g., parameters needed for communications between the UE andthe network) may be established for the UE in the RAN. In RRC_IDLE 702state, no data transfer between the UE and the network may take placeand uplink synchronization is not maintained. The wireless device maysleep most of the time and may wake up periodically to receive pagingmessages. The uplink transmission of the UE may be based on a randomaccess process and to enable transition to the RRC_CONNECTED 706 state.The mobility in RRC_IDLE 702 state is through a cell reselectionprocedure where the UE camps on a cell based on one or more criteriaincluding signal strength that is determined based on the UEmeasurements.

In RRC_CONNECTED 706 state, the RRC context is established and both theUE and the RAN have necessary parameters to enable communicationsbetween the UE and the network. In the RRC_CONNECTED 706 state, the UEis configured with an identity known as a Cell Radio Network TemporaryIdentifier (C-RNTI) that is used for signaling purposes (e.g., uplinkand downlink scheduling, etc.) between the UE and the RAN. The wirelessdevice mobility in the RRC_CONNECTED 706 state is managed by the RAN.The wireless device provides neighboring cells and/or current servingcell measurements to the network and the network may make hand overdecisions. Based on the wireless device measurements, the currentserving base station may send a handover request message to aneighboring base station and may send a handover command to the wirelessdevice to handover to a cell of the neighboring base station. Thetransition of the wireless device from the RRC_IDLE 702 state to theRRC_CONNECTED 706 state or from the RRC_CONNECTED 706 state to theRRC_IDLE 702 state may be based on connection establishment andconnection release procedures (shown collectively as connectionestablishment/release 710 in FIG. 7).

To enable a faster transition to the RRC_CONNECTED 706 state (e.g.,compared to transition from RRC_IDLE 702 state to RRC_CONNECTED 706state), an RRC_INACTIVE 704 state is used for an NR UE wherein, the RRCcontext is kept at the UE and the RAN. The transition from theRRC_INACTIVE 704 state to the RRC_CONNECTED 706 state is handled by RANwithout CN signaling. Similar to the RRC_IDLE 702 state, the mobility inRRC_INACTIVE 704 state is based on a cell reselection procedure withoutinvolvement from the network. The transition of the wireless device fromthe RRC_INACTIVE 704 state to the RRC_CONNECTED 706 state or from theRRC_CONNECTED 706 state to the RRC_INACTIVE 704 state may be based onconnection resume and connection inactivation procedures (showncollectively as connection resume/inactivation 712 in FIG. 7). Thetransition of the wireless device from the RRC_INACTIVE 704 state to theRRC_IDLE 702 state may be based on a connection release 714 procedure asshown in FIG. 7.

In NR, Orthogonal Frequency Division Multiplexing (OFDM), also calledcyclic prefix OFDM (CP-OFDM), is the baseline transmission scheme inboth downlink and uplink of NR and the Discrete Fourier Transform (DFT)spread OFDM (DFT-s-OFDM) is a complementary uplink transmission inaddition to the baseline OFDM scheme. OFDM is multi-carrier transmissionscheme wherein the transmission bandwidth may be composed of severalnarrowband sub-carriers. The subcarriers are modulated by the complexvalued OFDM modulation symbols resulting in an OFDM signal. The complexvalued OFDM modulation symbols are obtained by mapping, by a modulationmapper, the input data (e.g., binary digits) to different points of amodulation constellation diagram. The modulation constellation diagramdepends on the modulation scheme. NR may use different types ofmodulation schemes including Binary Phase Shift Keying (BPSK), π/2-BPSK,Quadrature Phase Shift Keying (QPSK), 16 Quadrature Amplitude Modulation(16 QAM), 64 QAM and 256 QAM. Different and/or higher order modulationschemes (e.g., M-QAM in general) may be used. An OFDM signal with Nsubcarriers may be generated by processing N subcarriers in parallel forexample by using Inverse Fast Fourier Transform (IFFT) processing. TheOFDM receiver may use FFT processing to recover the transmitted OFDMmodulation symbols. The subcarrier spacing of subcarriers in an OFDMsignal is inversely proportional to an OFDM modulation symbol duration.For example, for a 15 KHz subcarrier spacing, duration of an OFDM signalis nearly 66.7 μs. To enhance the robustness of OFDM transmission intime dispersive channels, a cyclic prefix (CP) may be inserted at thebeginning of an OFDM symbol. For example, the last part of an OFDMsymbol may be copied and inserted at the beginning of an OFDM symbol.The CP insertion enhanced the OFDM transmission scheme by preservingsubcarrier orthogonality in time dispersive channels.

In NR, different numerologies may be used for OFDM transmission. Anumerology of OFDM transmission may indicate a subcarrier spacing and aCP duration for the OFDM transmission. For example, a subcarrier spacingin NR may generally be a multiple of 15 KHz and expressed as Δf=2^(μ).15 KHz (μ=0, 1, 2, . . . ). Example subcarrier spacings used in NRinclude 15 KHz (μ=0), 30 KHz (μ=1), 60 KHz (μ=2), 120 KHz (μ=3) and 240KHz (μ=4). As discussed before, a duration of OFDM symbol is inverselyproportional to the subcarrier spacing and therefor OFDM symbol durationmay depend on the numerology (e.g. the μ value).

FIG. 8 shows an example time domain transmission structure in NR whereinOFDM symbols are grouped into slots, subframes and frames in accordancewith several of various embodiments of the present disclosure. A slot isa group of N_(symb) ^(slot) OFDM symbols, wherein the N_(symb) ^(slot)may have a constant value (e.g., 14). Since different numerologiesresults in different OFDM symbol durations, duration of a slot may alsodepend on the numerology and may be variable. A subframe may have aduration of 1 ms and may be composed of one or more slots, the number ofwhich may depend on the slot duration. The number of slots per subframeis therefore a function of μ and may generally expressed as N_(slot)^(subframe,μ) and the number of symbols per subframe may be expressed asN_(symb) ^(subframe,μ)=N_(symb) ^(slot)N_(slot) ^(subframe,μ). A framemay have a duration of 10 ms and may consist of 10 subframes. The numberof slots per frame may depend on the numerology and therefore may bevariable. The number of slots per frame may generally be expressed asN_(slot) ^(frame,μ).

An antenna port may be defined as a logical entity such that channelcharacteristics over which a symbol on the antenna port is conveyed maybe inferred from the channel characteristics over which another symbolon the same antenna port is conveyed. For example, for DM-RS associatedwith a PDSCH, the channel over which a PDSCH symbol on an antenna portis conveyed may be inferred from the channel over which a DM-RS symbolon the same antenna port is conveyed, for example, if the two symbolsare within the same resource as the scheduled PDSCH and/or in the sameslot and/or in the same precoding resource block group (PRG). Forexample, for DM-RS associated with a PDCCH, the channel over which aPDCCH symbol on an antenna port is conveyed may be inferred from thechannel over which a DM-RS symbol on the same antenna port is conveyedif, for example, the two symbols are within resources for which the UEmay assume the same precoding being used. For example, for DM-RSassociated with a PBCH, the channel over which a PBCH symbol on oneantenna port is conveyed may be inferred from the channel over which aDM-RS symbol on the same antenna port is conveyed if, for example, thetwo symbols are within a SS/PBCH block transmitted within the same slot,and with the same block index. The antenna port may be different from aphysical antenna. An antenna port may be associated with an antenna portnumber and different physical channels may correspond to differentranges of antenna port numbers.

FIG. 9 shows an example of time-frequency resource grid in accordancewith several of various embodiments of the present disclosure. Thenumber of subcarriers in a carrier bandwidth may be based on thenumerology of OFDM transmissions in the carrier. A resource element,corresponding to one symbol duration and one subcarrier, may be thesmallest physical resource in the time-frequency grid. A resourceelement (RE) for antenna port p and subcarrier spacing configuration μmay be uniquely identified by (k,l)_(p,μ) where k is the index of asubcarrier in the frequency domain and l may refer to the symbolposition in the time domain relative to some reference point. A resourceblock may be defined as N_(SC) ^(RB)=12 subcarriers. Since subcarrierspacing depends on the numerology of OFDM transmission, the frequencydomain span of a resource block may be variable and may depend on thenumerology. For example, for a subcarrier spacing of 15 KHz (e.g., μ=0),a resource block may be 180 KHz and for a subcarrier spacing of 30 KHz(e.g., μ=1), a resource block may be 360 KHz.

With large carrier bandwidths defined in NR and due to limitedcapabilities for some UEs (e.g., due to hardware limitations), a UE maynot support an entire carrier bandwidth. Receiving on the full carrierbandwidth may imply high energy consumption. For example, transmittingdownlink control channels on the full downlink carrier bandwidth mayresult in high power consumption for wide carrier bandwidths. NR may usea bandwidth adaptation procedure to dynamically adapt the transmit andreceive bandwidths. The transmit and receive bandwidth of a UE on a cellmay be smaller than the bandwidth of the cell and may be adjusted. Forexample, the width of the transmit and/or receive bandwidth may change(e.g., shrink during period of low activity to save power); the locationof the transmit and/or receive bandwidth may move in the frequencydomain (e.g., to increase scheduling flexibility); and the subcarrierspacing of the transmit or receive bandwidth may change (e.g., to allowdifferent services). A subset of the cell bandwidth may be referred toas a Bandwidth Part (BWP) and bandwidth adaptation may be achieved byconfiguring the UE with one or more BWPs. The base station may configurea UE with a set of downlink BWPs and a set of uplink BWPs. A BWP may becharacterized by a numerology (e.g., subcarrier spacing and cyclicprefix) and a set of consecutive resource blocks in the numerology ofthe BWP. One or more first BWPs of the one or more BWPs of the cell maybe active at a time. An active BWP may be an active downlink BWP or anactive uplink BWP.

FIG. 10 shows an example of bandwidth part adaptation and switching. Inthis example, three BWPs (BWP₁ 1004, BWP₂ 1006 and BWP₃ 1008) areconfigured for a UE on a carrier bandwidth. The BWP₁ is configured witha bandwidth of 40 MHz and a numerology with subcarrier spacing of 15KHz, the BWP₂ is configured with a bandwidth of 10 MHz and a numerologywith subcarrier spacing of 15 KHz and the BWP₃ is configured with abandwidth of 20 MHz and a subcarrier spacing of 60 KHz. The wirelessdevice may switch from a first BWP (e.g., BWP₁) to a second BWP (e.g.,BWP₂). An active BWP of the cell may change from the first BWP to thesecond BWP in response to the BWP switching.

The BWP switching (e.g., BWP switching 1010, BWP switching 1012, BWPswitching 1014, or BWP switching 1016 in FIG. 10) may be based on acommand from the base station. The command may be a DCI comprisingscheduling information for the UE in the second BWP. In case of uplinkBWP switching, the first BWP and the second BWP may be uplink BWPs andthe scheduling information may be an uplink grant for uplinktransmission via the second BWP. In case of downlink BWP switching, thefirst BWP and the second BWP may be downlink BWPs and the schedulinginformation may be a downlink assignment for downlink reception via thesecond BWP.

The BWP switching (e.g., BWP switching 1010, BWP switching 1012, BWPswitching 1014, or BWP switching 1016 in FIG. 10) may be based on anexpiry of a timer. The base station may configure a wireless device witha BWP inactivity timer and the wireless device may switch to a defaultBWP (e.g., default downlink BWP) based on the expiry of the BWPinactivity timer. The expiry of the BWP inactivity timer may be anindication of low activity on the current active downlink BWP. The basestation may configure the wireless device with the default downlink BWP.If the base station does not configure the wireless device with thedefault BWP, the default BWP may be an initial downlink BWP. The initialactive BWP may be the BWP that the wireless device receives schedulinginformation for remaining system information upon transition to anRRC_CONNECTED state.

A wireless device may monitor a downlink control channel of a downlinkBWP. For example, the UE may monitor a set of PDCCH candidates inconfigured monitoring occasions in one or more configured COntrolREsource SETs (CORESETs) according to the corresponding search spaceconfigurations. A search space configuration may define how/where tosearch for PDCCH candidates. For example, the search space configurationparameters may comprise a monitoring periodicity and offset parameterindicating the slots for monitoring the PDCCH candidates. The searchspace configuration parameters may further comprise a parameterindicating a first symbol with a slot within the slots determined formonitoring PDCCH candidates. A search space may be associated with oneor more CORESETs and the search space configuration may indicate one ormore identifiers of the one or more CORESETs. The search spaceconfiguration parameters may further indicate that whether the searchspace is a common search space or a UE-specific search space. A commonsearch space may be monitored by a plurality of wireless devices and aUE-specific search space may be dedicated to a specific UE.

FIG. 11A shows example arrangements of carriers in carrier aggregationin accordance with several of various embodiments of the presentdisclosure. With carrier aggregation, multiple NR component carriers(CCs) may be aggregated. Downlink transmissions to a wireless device maytake place simultaneously on the aggregated downlink CCs resulting inhigher downlink data rates. Uplink transmissions from a wireless devicemay take place simultaneously on the aggregated uplink CCs resulting inhigher uplink data rates. The component carriers in carrier aggregationmay be on the same frequency band (e.g., intra-band carrier aggregation)or on different frequency bands (e.g., inter-band carrier aggregation).The component carriers may also be contiguous or non-contiguous. Thisresults in three possible carrier aggregation scenarios, intra-bandcontiguous CA 1102, intra-band non-contiguous CA 1104 and inter-band CA1106 as shown in FIG. 11A. Depending on the UE capability for carrieraggregation, a UE may transmit and/or receive on multiple carriers orfor a UE that is not capable of carrier aggregation, the UE may transmitand/or receive on one component carrier at a time. In this disclosure,the carrier aggregation is described using the term cell and a carrieraggregation capable UE may transmit and/or receive via multiple cells.

In carrier aggregation, a UE may be configured with multiple cells. Acell of the multiple cells configured for the UE may be referred to as aPrimary Cell (PCell). The PCell may be the first cell that the UE isinitially connected to. One or more other cells configured for the UEmay be referred to as Secondary Cells (SCells). The base station mayconfigure a UE with multiple SCells. The configured SCells may bedeactivated upon configuration and the base station may dynamicallyactivate or deactivate one or more of the configured SCells based ontraffic and/or channel conditions. The base station may activate ordeactivate configured SCells using a SCell Activation/Deactivation MACCE. The SCell Activation/Deactivation MAC CE may comprise a bitmap,wherein each bit in the bitmap may correspond to a SCell and the valueof the bit indicates an activation status or deactivation status of theSCell.

An SCell may also be deactivated in response to expiry of a SCelldeactivation timer of the SCell. The expiry of an SCell deactivationtimer of an SCell may be an indication of low activity (e.g., lowtransmission or reception activity) on the SCell. The base station mayconfigure the SCell with an SCell deactivation timer. The base stationmay not configure an SCell deactivation timer for an SCell that isconfigured with PUCCH (also referred to as a PUCCH SCell). Theconfiguration of the SCell deactivation timer may be per configuredSCell and different SCells may be configured with different SCelldeactivation timer values. The SCell deactivation timer may be restartedbased on one or more criteria including reception of downlink controlinformation on the SCell indicating uplink grant or downlink assignmentfor the SCell or reception of downlink control information on ascheduling cell indicating uplink grant or downlink assignment for theSCell or transmission of a MAC PDU based on a configured uplink grant orreception of a configured downlink assignment.

A PCell for a UE may be an SCell for another UE and a SCell for a UE maybe PCell for another UE. The configuration of PCell may be UE-specific.One or more SCells of the multiple SCells configured for a UE may beconfigured as downlink-only SCells, e.g., may only be used for downlinkreception and may not be used for uplink transmission. In case ofself-scheduling, the base station may transmit signaling for uplinkgrants and/or downlink assignments on the same cell that thecorresponding uplink or downlink transmission takes place. In case ofcross-carrier scheduling, the base station may transmit signaling foruplink grants and/or downlink assignments on a cell different from thecell that the corresponding uplink or downlink transmission takes place.

FIG. 11B shows examples of uplink control channel groups in accordancewith several of various embodiments of the present disclosure. A basestation may configure a UE with multiple PUCCH groups wherein a PUCCHgroup comprises one or more cells. For example, as shown in FIG. 11B,the base station may configure a UE with a primary PUCCH group 1114 anda secondary PUCCH group 1116. The primary PUCCH group may comprise thePCell 1110 and one or more first SCells. First UCI corresponding to thePCell and the one or more first SCells of the primary PUCCH group may betransmitted by the PUCCH of the PCell. The first UCI may be, forexample, HARQ feedback for downlink transmissions via downlink CCs ofthe PCell and the one or more first SCells. The secondary PUCCH groupmay comprise a PUCCH SCell and one or more second SCells. Second UCIcorresponding to the PUCCH SCell and the one or more second SCells ofthe secondary PUCCH group may be transmitted by the PUCCH of the PUCCHSCell. The second UCI may be, for example, HARQ feedback for downlinktransmissions via downlink CCs of the PUCCH SCell and the one or moresecond SCells.

FIG. 12A, FIG. 12B and FIG. 12C show example random access processes inaccordance with several of various embodiments of the presentdisclosure. FIG. 12A shows an example of four step contention-basedrandom access (CBRA) procedure. The four-step CBRA procedure includesexchanging four messages between a UE and a base station. Msg1 may befor transmission (or retransmission) of a random access preamble by thewireless device to the base station. Msg2 may be the random accessresponse (RAR) by the base station to the wireless device. Msg3 is thescheduled transmission based on an uplink grant indicated in Msg2 andMsg4 may be for contention resolution.

The base station may transmit one or more RRC messages comprisingconfiguration parameters of the random access parameters. The randomaccess parameters may indicate radio resources (e.g., time-frequencyresources) for transmission of the random access preamble (e.g., Msg1),configuration index, one or more parameters for determining the power ofthe random access preamble (e.g., a power ramping parameter, a preamblereceived target power, etc.), a parameter indicating maximum number ofpreamble transmission, RAR window for monitoring RAR, cell-specificrandom access parameters and UE specific random access parameters. TheUE-specific random access parameters may indicate one or more PRACHoccasions for random access preamble (e.g., Msg1) transmissions. Therandom access parameters may indicate association between the PRACHoccasions and one or more reference signals (e.g., SSB or CSI-RS). Therandom access parameters may further indicate association between therandom access preambles and one or more reference signals (e.g., SBB orCSI-RS). The UE may use one or more reference signals (e.g., SSB(s) orCSI-RS(s)) and may determine a random access preamble to use for Msg1transmission based on the association between the random accesspreambles and the one or more reference signals. The UE may use one ormore reference signals (e.g., SSB(s) or CSI-RS(s)) and may determine thePRACH occasion to use for Msg1 transmission based on the associationbetween the PRACH occasions and the reference signals. The UE mayperform a retransmission of the random access preamble if no response isreceived with the RAR window following the transmission of the preamble.UE may use a higher transmission power for retransmission of thepreamble. UE may determine the higher transmission power of the preamblebased on the power ramping parameter.

Msg2 is for transmission of RAR by the base station. Msg2 may comprise aplurality of RARs corresponding to a plurality of random accesspreambles transmitted by a plurality of UEs. Msg2 may be associated witha random access temporary radio identifier (RA-RNTI) and may be receivedin a common search space of the UE. The RA-RNTI may be based on thePRACH occasion (e.g., time and frequency resources of a PRACH) in whicha random access preamble is transmitted. RAR may comprise a timingadvance command for uplink timing adjustment at the UE, an uplink grantfor transmission of Msg3 and a temporary C-RNTI. In response to thesuccessful reception of Msg2, the UE may transmit the Msg3. Msg3 andMsg4 may enable contention resolution in case of CBRA. In a CBRA, aplurality of UEs may transmit the same random access preamble and mayconsider the same RAR as being corresponding to them. UE may include adevice identifier in Msg3 (e.g., a C-RNTI, temporary C-RNTI or other UEidentity). Base station may transmit the Msg4 with a PDSCH and UE mayassume that the contention resolution is successful in response to thePDSCH used for transmission of Msg4 being associated with the UEidentifier included in Msg3.

FIG. 12B shows an example of a contention-free random access (CFRA)process. Msg 1 (random access preamble) and Msg 2 (random accessresponse) in FIG. 12B for CFRA may be analogous to Msg 1 and Msg 2 inFIG. 12A for CBRA. In an example, the CFRA procedure may be initiated inresponse to a PDCCH order from a base station. The PDCCH order forinitiating the CFRA procedure by the wireless device may be based on aDCI having a first format (e.g., format 1_0). The DCI for the PDCCHorder may comprise a random access preamble index, an UL/SUL indicatorindicating an uplink carrier of a cell (e.g., normal uplink carrier orsupplementary uplink carrier) for transmission of the random accesspreamble, a SS/PBCH index indicating the SS/PBCH that may be used todetermine a RACH occasion for PRACH transmission, a PRACH mask indexindicating the RACH occasion associated with the SS/PBCH indicated bythe SS/PBCH index for PRACH transmission, etc. In an example, the CFRAprocess may be started in response to a beam failure recovery process.The wireless device may start the CFRA for the beam failure recoverywithout a command (e.g., PDCCH order) from the base station and by usingthe wireless device dedicated resources.

FIG. 12C shows an example of a two-step random access process comprisingtwo messages exchanged between a wireless device and a base station. MsgA may be transmitted by the wireless device to the base station and maycomprise one or more transmissions of a preamble and/or one or moretransmissions of a transport block. The transport block in Msg A and Msg3 in FIG. 12A may have similar and/or equivalent contents. The transportblock of Msg A may comprise data and control information (e.g., SR, HARQfeedback, etc.). In response to the transmission of Msg A, the wirelessdevice may receive Msg B from the base station. Msg B in FIG. 12C andMsg 2 (e.g., RAR) illustrated in FIGS. 12A and 12B may have similarand/or equivalent content.

The base station may periodically transmit synchronization signals(SSs), e.g., primary SS (PSS) and secondary SS (SSS) along with PBCH oneach NR cell. The PSS/SSS together with PBCH is jointly referred to as aSS/PBCH block. The SS/PBCH block enables a wireless device to find acell when entering to the mobile communications network or find newcells when moving within the network. The SS/PBCH block spans four OFDMsymbols in time domain. The PSS is transmitted in the first symbol andoccupies 127 subcarriers in frequency domain. The SSS is transmitted inthe third OFDM symbol and occupies the same 127 subcarriers as the PSS.There are eight and nine empty subcarriers on each side of the SSS. ThePBCH is transmitted on the second OFDM symbol occupying 240 subcarriers,the third OFDM symbol occupying 48 subcarriers on each side of the SSS,and on the fourth OFDM symbol occupying 240 subcarriers. Some of thePBCH resources indicated above may be used for transmission of thedemodulation reference signal (DMRS) for coherent demodulation of thePBCH. The SS/PBCH block is transmitted periodically with a periodranging from 5 ms to 160 ms. For initial cell search or for cell searchduring inactive/idle state, a wireless device may assume that that theSS/PBCH block is repeated at least every 20 ms.

In NR, transmissions using of antenna arrays, with many antennaelements, and beamforming plays an important role specially in higherfrequency bands. Beamforming enables higher capacity by increasing thesignal strength (e.g., by focusing the signal energy in a specificdirection) and by lowering the amount interference received at thewireless devices. The beamforming techniques may generally be divided toanalog beamforming and digital beamforming techniques. With digitalbeamforming, signal processing for beamforming is carried out in thedigital domain before digital-to-analog conversion and detailed controlof both amplitude and phase of different antenna elements may bepossible. With analog beamforming, the signal processing for beamformingis carried out in the analog domain and after the digital to analogconversion. The beamformed transmissions may be in one direction at atime. For example, the wireless devices that are in different directionsrelative to the base station may receive their downlink transmissions atdifferent times. For analog receiver-side beamforming, the receiver mayfocus its receiver beam in one direction at a time.

In NR, the base station may use beam sweeping for transmission ofSS/PBCH blocks. The SS/PBCH blocks may be transmitted in different beamsusing time multiplexing. The set of SS/PBCH blocks that are transmittedin one beam sweep may be referred to as a SS/PBCH block set. The periodof PBCH/SSB block transmission may be a time duration between a SS/PBCHblock transmission in a beam and the next SS/PBCH block transmission inthe same beam. The period of SS/PBCH block is, therefore, also theperiod of the SS/PBCH block set.

FIG. 13A shows example time and frequency structure of SS/PBCH blocksand their associations with beams in accordance with several of variousembodiments of the present disclosure. In this example, a SS/PBCH block(also referred to as SSB) set comprise L SSBs wherein an SSB in the SSBset is associated with (e.g., transmitted in) one of L beams of a cell.The transmission of SBBs of an SSB set may be confined within a 5 msinterval, either in a first half-frame or a second half-frame of a 10 msframe. The number of SSBs in an SSB set may depend on the frequency bandof operation. For example, the number of SSBs in a SSB set may be up tofour SSBs in frequency bands below 3 GHz enabling beam sweeping of up tofour beams, up to eight SSBs in frequency bands between 3 GHz and 6 GHzenabling beam sweeping of up to eight beams, and up to sixty four SSBsin higher frequency bands enabling beam sweeping of up to sixty fourbeams. The SSs of an SSB may depend on a physical cell identity (PCI) ofthe cell and may be independent of which beam of the cell is used fortransmission of the SSB. The PBCH of an SSB may indicate a time indexparameter and the wireless device may determine the relative position ofthe SSB within the SSB set using the time index parameter. The wirelessdevice may use the relative position of the SSB within an SSB set fordetermining the frame timing and/or determining RACH occasions for arandom access process.

A wireless device entering the mobile communications network may firstsearch for the PSS. After detecting the PSS, the wireless device maydetermine the synchronization up to the periodicity of the PSS. Bydetecting the PSS, the wireless device may determine the transmissiontiming of the SSS. The wireless device may determine the PCI of the cellafter detecting the SSS. The PBCH of a SS/PBCH block is a downlinkphysical channel that carries the MIB. The MIB may be used by thewireless device to obtain remaining system information (RMSI) that isbroadcast by the network. The RMSI may include System Information Block1 (SIB1) that contains information required for the wireless device toaccess the cell.

As discussed earlier, the wireless device may determine a time indexparameter from the SSB. The PBCH comprises a half-frame parameterindicating whether the SSB is in the first 5 ms half or the second 5 mshalf of a 10 ms frame. The wireless device may determine the frameboundary using the time index parameter and the half-frame parameter. Inaddition, the PBCH may comprise a parameter indicating the system framenumber (SFN) of the cell.

The base station may transmit CSI-RS and a UE may measure the CSI-RS toobtain channel state information (CSI). The base station may configurethe CSI-RS in a UE-specific manner. In some scenarios, same set ofCSI-RS resources may be configured for multiple UEs and one or moreresource elements of a CSI-RS resource may be shared among multiple UEs.A CSI-RS resource may be configured such that it does not collide with aCORESET configured for the wireless device and/or with a DMRS of a PDSCHscheduled for the wireless device and/or transmitted SSBs. The UE maymeasure one or more CSI-RSs configured for the UE and may generate a CSIreport based on the CSI-RS measurements and may transmit the CSI reportto the base station for scheduling, link adaptation and/or otherpurposes.

NR supports flexible CSI-RS configurations. A CSI-RS resource may beconfigured with single or multiple antenna ports and with configurabledensity. Based on the number of configured antenna ports, a CSI-RSresource may span different number of OFDM symbols (e.g., 1, 2, and 4symbols). The CSI-RS may be configured for a downlink BWP and may usethe numerology of the downlink BWP. The CSI-RS may be configured tocover the full bandwidth of the downlink BWP or a portion of thedownlink BWP. In some case, the CSI-RS may be repeated in every resourceblock of the CSI-RS bandwidth, referred to as CSI-RS with density equalto one. In some cases, the CSI-RS may be configured to be repeated inevery other resource block of the CSI-RS bandwidth. CSI-RS may benon-zero power (NZP) CSI-RS or zero-power (ZP) CSI-RS.

The base station may configure a wireless device with one or more setsof NZP CSI-RS resources. The base station may configure the wirelessdevice with a NZP CSI-RS resource set using an RRC information element(IE) NZP-CSI-RS-ResourceSet indicating a NZP CSI-RS resource setidentifier (ID) and parameters specific to the NZP CSI-RS resource set.An NZP CSI-RS resource set may comprise one or more CSI-RS resources. AnNZP CSI-RS resource set may be configured as part of the CSI measurementconfiguration.

The CSI-RS may be configured for periodic, semi-persistent or aperiodictransmission. In case of the periodic and semi-persistent CSI-RSconfigurations, the wireless device may be configured with a CSIresource periodicity and offset parameter that indicate a periodicityand corresponding offset in terms of number of slots. The wirelessdevice may determine the slots that the CSI-RSs are transmitted. Forsemi-persistent CSI-RS, the CSI-RS resources for CSI-RS transmissionsmay be activated and deactivated by using a semi-persistent (SP) CSI-CSIResource Set Activation/Deactivation MAC CE. In response to receiving aMAC CE indicating activation of semi-persistent CSI-RS resources, thewireless device may assume that the CSI-RS transmissions will continueuntil the CSI-RS resources for CSI-RS transmissions are activated.

As discussed before, CSI-RS may be configured for a wireless device asNZP CSI-RS or ZP CSI-RS. The configuration of the ZP CSI-RS may besimilar to the NZP CSI-RS with the difference that the wireless devicemay not carry out measurements for the ZP CSI-RS. By configuring ZPCSI-RS, the wireless device may assume that a scheduled PDSCH thatincludes resource elements from the ZP CSI-RS is rate matched aroundthose ZP CSI-RS resources. For example, a ZP CSI-RS resource configuredfor a wireless device may be an NZP CSI-RS resource for another wirelessdevice. For example, by configuring ZP CSI-RS resources for the wirelessdevice, the base station may indicate to the wireless device that thePDSCH scheduled for the wireless device is rate matched around the ZPCSI-RS resources.

A base station may configure a wireless device with channel stateinformation interference measurement (CSI-IM) resources. Similar to theCSI-RS configuration, configuration of locations and density of CSI-IMresources may be flexible. The CSI-IM resources may be periodic(configured with a periodicity), semi-persistent (configured with aperiodicity and activated and deactivated by MAC CE) or aperiodic(triggered by a DCI).

Tracking reference signals (TRSs) may be configured for a wirelessdevice as a set of sparse reference signals to assist the wireless intime and frequency tracking and compensating time and frequencyvariations in its local oscillator. The wireless device may further usethe TRSs for estimating channel characteristics such as delay spread ordoppler frequency. The base station may use a CSI-RS configuration forconfiguring TRS for the wireless device. The TRS may be configured as aresource set comprising multiple periodic NZP CSI-RS resources.

A base station may configure a UE and the UE may transmit soundingreference signals (SRSs) to enable uplink channel sounding/estimation atthe base station. The SRS may support up to four antenna ports and maybe designed with low cubic metric enabling efficient operation of thewireless device amplifier. The SRS may span one or more (e.g., one, twoor four) consecutive OFDM symbols in time domain and may be locatedwithin the last n (e.g., six) symbols of a slot. In the frequencydomain, the SRS may have a structure that is referred to as a combstructure and may be transmitted on every Nth subcarrier. Different SRStransmissions from different wireless devices may have different combstructures and may be multiplexed in frequency domain.

A base station may configure a wireless device with one or more SRSresource sets and an SRS resource set may comprise one or more SRSresources. The SRS resources in an SRS resources set may be configuredfor periodic, semi-persistent or aperiodic transmission. The periodicSRS and the semi-persistent SRS resources may be configured withperiodicity and offset parameters. The Semi-persistent SRS resources ofa configured semi-persistent SRS resource set may be activated ordeactivated by a semi-persistent (SP) SRS Activation/Deactivation MACCE. The set of SRS resources included in an aperiodic SRS resource setmay be activated by a DCI. A value of a field (e.g., an SRS requestfield) in the DCI may indicate activation of resources in an aperiodicSRS resource set from a plurality of SRS resource sets configured forthe wireless device.

An antenna port may be associated with one or more reference signals.The receiver may assume that the one or more reference signals,associated with the antenna port, may be used for estimating channelcorresponding to the antenna port. The reference signals may be used toderive channel state information related to the antenna port. Twoantenna ports may be referred to as quasi co-located if characteristics(e.g., large-scale properties) of the channel over which a symbol isconveyed on one antenna port may be inferred from the channel over whicha symbol is conveyed from another antenna port. For example, a UE mayassume that radio channels corresponding to two different antenna portshave the same large-scale properties if the antenna ports are specifiedas quasi co-located. In some cases, the UE may assume that two antennaports are quasi co-located based on signaling received from the basestation. Spatial quasi-colocation (QCL) between two signals may be, forexample, due to the two signals being transmitted from the same locationand in the same beam. If a receive beam is good for a signal in a groupof signals that are spatially quasi co-located, it may be assumed alsobe good for the other signals in the group of signals.

The CSI-RS in the downlink and the SRS in uplink may serve asquasi-location (QCL) reference for other physical downlink channels andphysical uplink channels, respectively. For example, a downlink physicalchannel (e.g., PDSCH or PDCCH) may be spatially quasi co-located with adownlink reference signal (e.g., CSI-RS or SSB). The wireless device maydetermine a receive beam based on measurement on the downlink referencesignal and may assume that the determined received beam is also good forreception of the physical channels (e.g., PDSCH or PDCCH) that arespatially quasi co-located with the downlink reference signal.Similarly, an uplink physical channel (e.g., PUSCH or PUCCH) may bespatially quasi co-located with an uplink reference signal (e.g., SRS).The base station may determine a receive beam based on measurement onthe uplink reference signal and may assume that the determined receivedbeam is also good for reception of the physical channels (e.g., PUSCH orPUCCH) that are spatially quasi co-located with the uplink referencesignal.

The Demodulation Reference Signals (DM-RSs) enables channel estimationfor coherent demodulation of downlink physical channels (e.g., PDSCH,PDCCH and PBH) and uplink physical channels (e.g., PUSCH and PUCCH). TheDM-RS may be located early in the transmission (e.g., front-loadedDM-RS) and may enable the receiver to obtain the channel estimate earlyand reduce the latency. The time-domain structure of the DM-RS (e.g.,symbols wherein the DM-RS are located in a slot) may be based ondifferent mapping types.

The Phase Tracking Reference Signals (PT-RSs) enables tracking andcompensation of phase variations across the transmission duration. Thephase variations may be, for example, due to oscillator phase noise. Theoscillator phase noise may become more sever in higher frequencies(e.g., mmWave frequency bands). The base station may configure the PT-RSfor uplink and/or downlink. The PT-RS configuration parameters mayindicate frequency and time density of PT-RS, maximum number of ports(e.g., uplink ports), resource element offset, configuration of uplinkPT-RS without transform precoder (e.g., CP-OFDM) or with transformprecoder (e.g., DFT-s-OFDM), etc. The subcarrier number and/or resourceblocks used for PT-RS transmission may be based on the C-RNTI of thewireless device to reduce risk of collisions between PT-RSs of wirelessdevices scheduled on overlapping frequency domain resources.

FIG. 13B shows example time and frequency structure of CSI-RSs and theirassociation with beams in accordance with several of various embodimentsof the present disclosure. A beam of the L beams shown in FIG. 13B maybe associated with a corresponding CSI-RS resource. The base station maytransmit the CSI-RSs using the configured CSI-RS resources and a UE maymeasure the CSI-RSs (e.g., received signal received power (RSRP) of theCSI-RSs) and report the CSI-RS measurements to the base station based ona reporting configuration. For example, the base station may determineone or more transmission configuration indication (TCI) states and mayindicate the one or more TCI states to the UE (e.g., using RRCsignaling, a MAC CE and/or a DCI). Based on the one or more TCI statesindicated to the UE, the UE may determine a downlink receive beam andreceive downlink transmissions using the receive beam. In case of a beamcorrespondence, the UE may determine a spatial domain filter of atransmit beam based on spatial domain filter of a corresponding receivebeam. Otherwise, the UE may perform an uplink beam selection procedureto determine the spatial domain filter of the transmit beam. The UE maytransmit one or more SRSs using the SRS resources configured for the UEand the base station may measure the SRSs and determine/select thetransmit beam for the UE based the SRS measurements. The base stationmay indicate the selected beam to the UE. The CSI-RS resources shown inFIG. 13B may be for one UE. The base station may configure differentCSI-RS resources associated with a given beam for different UEs by usingfrequency division multiplexing.

A base station and a wireless device may perform beam managementprocedures to establish beam pairs (e.g., transmit and receive beams)that jointly provide good connectivity. For example, in the downlinkdirection, the UE may perform measurements for a beam pair and estimatechannel quality for a transmit beam by the base station (or atransmission reception point (TRP) more generally) and the receive beamby the UE. The UE may transmit a report indicating beam pair qualityparameters. The report may comprise one or more parameters indicatingone or more beams (e.g., a beam index, an identifier of reference signalassociated with a beam, etc.), one or more measurement parameters (e.g.,RSRP), a precoding matrix indicator (PMI), a channel quality indicator(CQI), and/or a rank indicator (RI).

FIG. 14A, FIG. 14B and FIG. 14C show example beam management processes(referred to as P1, P2 and P3, respectively) in accordance with severalof various embodiments of the present disclosure. The P1 process shownin FIG. 14A may enable, based on UE measurements, selection of a basestation (or TRP more generally) transmit beam and/or a wireless devicereceive beam. The TRP may perform a beam sweeping procedure where theTRP may sequentially transmit reference signals (e.g., SSB and/orCSI-RS) on a set of beams and the UE may select a beam from the set ofbeams and may report the selected beam to the TRP. The P2 procedure asshown in FIG. 14B may be a beam refinement procedure. The selection ofthe TRP transmit beam and the UE receive beam may be regularlyreevaluated due to movements and/or rotations of the UE or movement ofother objects. In an example, the base station may perform the beamsweeping procedure over a smaller set of beams and the UE may select thebest beam over the smaller set. In an example, the beam shape may benarrower compared to beam selected based on the P1 procedure. Using theP3 procedure as shown in FIG. 14C, the TRP may fix its transmit beam andthe UE may refine its receive beam.

A wireless device may receive one or more messages from a base station.The one or more messages may comprise one or more RRC messages. The oneor more messages may comprise configuration parameters of a plurality ofcells for the wireless device. The plurality of cells may comprise aprimary cell and one or more secondary cells. For example, the pluralityof cells may be provided by a base station and the wireless device maycommunicate with the base station using the plurality of cells. Forexample, the plurality of cells may be provided by multiple base station(e.g., in case of dual and/or multi-connectivity). The wireless devicemay communicate with a first base station, of the multiple basestations, using one or more first cells of the plurality of cells. Thewireless device may communicate with a second base station of themultiple base stations using one or more second cells of the pluralityof cells.

The one or more messages may comprise configuration parameters used forprocesses in physical, MAC, RLC, PCDP, SDAP, and/or RRC layers of thewireless device. For example, the configuration parameters may includevalues of timers used in physical, MAC, RLC, PCDP, SDAP, and/or RRClayers. For example, the configuration parameters may include parametersfor configurating different channels (e.g., physical layer channel,logical channels, RLC channels, etc.) and/or signals (e.g., CSI-RS, SRS,etc.).

Upon starting a timer, the timer may start running until the timer isstopped or until the timer expires. A timer may be restarted if it isrunning. A timer may be started if it is not running (e.g., after thetimer is stopped or after the timer expires). A timer may be configuredwith or may be associated with a value (e.g., an initial value). Thetimer may be started or restarted with the value of the timer. The valueof the timer may indicate a time duration that the timer may be runningupon being started or restarted and until the timer expires. Theduration of a timer may not be updated until the timer is stopped orexpires (e.g., due to BWP switching). This specification may disclose aprocess that includes one or more timers. The one or more timers may beimplemented in multiple ways. For example, a timer may be used by thewireless device and/or base station to determine a time window [t1, t2],wherein the timer is started at time t1 and expires at time t2 and thewireless device and/or the base station may be interested in and/ormonitor the time window [t1, t2], for example to receive a specificsignaling. Other examples of implementation of a timer may be provided.

FIG. 15 shows example components of a wireless device and a base stationthat are in communication via an air interface in accordance withseveral of various embodiments of the present disclosure. The wirelessdevice 1502 may communicate with the base station 1542 over the airinterface 1532. The wireless device 1502 may include a plurality ofantennas. The base station 1542 may include a plurality of antennas. Theplurality of antennas at the wireless device 1502 and/or the basestation 1542 enables different types of multiple antenna techniques suchas beamforming, single-user and/or multi-user MIMO, etc.

The wireless device 1502 and the base station 1542 may have one or moreof a plurality of modules/blocks, for example RF front end (e.g., RFfront end 1530 at the wireless device 1502 and RF front end 1570 at thebase station 1542), Data Processing System (e.g., Data Processing System1524 at the wireless device 1502 and Data Processing System 1564 at thebase station 1542), Memory (e.g., Memory 1512 at the wireless device1502 and Memory 1542 at the base station 1542). Additionally, thewireless device 1502 and the base station 1542 may have othermodules/blocks such as GPS (e.g., GPS 1514 at the wireless device 1502and GPS 1554 at the base station 1542).

An RF front end module/block may include circuitry between antennas anda Data Processing System for proper conversion of signals between thesetwo modules/blocks. An RF front end may include one or more filters(e.g., Filter(s) 1526 at RF front end 1530 or Filter(s) 1566 at the RFfront end 1570), one or more amplifiers (e.g., Amplifier(s) 1528 at theRF front end 1530 and Amplifier(s) 1568 at the RF front end 1570). TheAmplifier(s) may comprise power amplifier(s) for transmission andlow-noise amplifier(s) (LNA(s)) for reception.

The Data Processing System 1524 and the Data Processing System 1564 mayprocess the data to be transmitted or the received signals byimplementing functions at different layers of the protocol stack such asPHY, MAC, RLC, etc. Example PHY layer functions that may be implementedby the Data Processing System 1524 and/or 1564 may include forward errorcorrection, interleaving, rate matching, modulation, precoding, resourcemapping, MIMO processing, etc. Similarly, one or more functions of theMAC layer, RLC layer and/or other layers may be implemented by the DataProcessing System 1524 and/or the Data Processing System 1564. One ormore processes described in the present disclosure may be implemented bythe Data Processing System 1524 and/or the Data Processing System 1564.A Data Processing System may include an RF module (RF module 1516 at theData Processing System 1524 and RF module 1556 at the Data ProcessingSystem 1564) and/or a TX/RX processor (e.g., TX/RX processor 1518 at theData Processing System 1524 and TX/RX processor 1558 at the DataProcessing System 1566) and/or a central processing unit (CPU) (e.g.,CPU 1520 at the Data Processing System 1524 and CPU 1560 at the DataProcessing System 1564) and/or a graphical processing unit (GPU) (e.g.,GPU 1522 at the Data Processing System 1524 and GPU 1562 at the DataProcessing System 1564).

The Memory 1512 may have interfaces with the Data Processing System 1524and the Memory 1552 may have interfaces with Data Processing System1564, respectively. The Memory 1512 or the Memory 1552 may includenon-transitory computer readable mediums (e.g., Storage Medium 1510 atthe Memory 1512 and Storage Medium 1550 at the Memory 1552) that maystore software code or instructions that may be executed by the DataProcessing System 1524 and Data Processing System 1564, respectively, toimplement the processes described in the present disclosure. The Memory1512 or the Memory 1552 may include random-access memory (RAM) (e.g.,RAM 1506 at the Memory 1512 or RAM 1546 at the Memory 1552) or read-onlymemory (ROM) (e.g., ROM 1508 at the Memory 1512 or ROM 1548 at theMemory 1552) to store data and/or software codes.

The Data Processing System 1524 and/or the Data Processing System 1564may be connected to other components such as a GPS module 1514 and a GPSmodule 1554, respectively, wherein the GPS module 1514 and a GPS module1554 may enable delivery of location information of the wireless device1502 to the Data Processing System 1524 and location information of thebase station 1542 to the Data Processing System 1564. One or more otherperipheral components (e.g., Peripheral Component(s) 1504 or PeripheralComponent(s) 1544) may be configured and connected to the dataProcessing System 1524 and data Processing System 1564, respectively.

In example embodiments, a wireless device may be configured withparameters and/or configuration arrangements. For example, theconfiguration of the wireless device with parameters and/orconfiguration arrangements may be based on one or more control messagesthat may be used to configure the wireless device to implement processesand/or actions. The wireless device may be configured with theparameters and/or the configuration arrangements regardless of thewireless device being in operation or not in operation. For example,software, firmware, memory, hardware and/or a combination thereof and/oralike may be configured in a wireless device regardless of the wirelessdevice being in operation or not operation. The configured parametersand/or settings may influence the actions and/or processes performed bythe wireless device when in operation.

In example embodiments, a wireless device may receive one or moremessage comprising configuration parameters. For example, the one ormore messages may comprise radio resource control (RRC) messages. Aparameter of the configuration parameters may be in at least one of theone or more messages. The one or more messages may comprise informationelement (IEs). An information element may be a structural element thatincludes single or multiple fields. The fields in an IE may beindividual contents of the IE. The terms configuration parameter, IE andfield may be used equally in this disclosure. The IEs may be implementedusing a nested structure, wherein an IE may include one or more otherIEs and an IE of the one or more other IEs may include one or moreadditional IEs. With this structure, a parent IE contains all theoffspring IEs as well. For example, a first IE containing a second IE,the second IE containing a third IE, and the third IE containing afourth IE may imply that the first IE contains the third IE and thefourth IE.

In an example, a Physical Downlink Control Channel (PDCCH) may be usedto schedule DL transmissions on PDSCH and UL transmissions on PUSCH,where the Downlink Control Information (DCI) on PDCCH may include:Downlink assignments containing at least modulation and coding format,resource allocation, and hybrid-ARQ information related to DL-SCH;Uplink scheduling grants containing at least modulation and codingformat, resource allocation, and hybrid-ARQ information related toUL-SCH.

In an example, in addition to scheduling, PDCCH can be used to forActivation and deactivation of configured PUSCH transmission withconfigured grant; Activation and deactivation of PDSCH semi-persistenttransmission; Notifying one or more UEs of the slot format; Notifyingone or more UEs of the PRB(s) and OFDM symbol(s) where the UE may assumeno transmission is intended for the UE; Transmission of TPC commands forPUCCH and PUSCH; Transmission of one or more TPC commands for SRStransmissions by one or more UEs; Switching a UE's active bandwidthpart; Initiating a random access procedure; Indicating the UE(s) tomonitor the PDCCH during the next occurrence of the DRX on-duration.

In an example, a UE may monitor a set of PDCCH candidates in theconfigured monitoring occasions in one or more configured COntrolREsource SETs (CORESETs) according to the corresponding search spaceconfigurations.

In an example, a CORESET may comprise a set of PRBs with a time durationof 1 to 3 OFDM symbols. The resource units Resource Element Groups(REGs) and Control Channel Elements (CCEs) may be defined within aCORESET with each CCE comprising a set of REGs. Control channels may beformed by aggregation of CCE. Different code rates for the controlchannels may be realized by aggregating different number of CCE.Interleaved and non-interleaved CCE-to-REG mapping may be supported in aCORESET.

In an example, a resource element group carrying PDCCH my carry its ownDMRS.

In an example, an IE PDCCH-Config may be used to configure UE specificPDCCH parameters such as control resource sets (CORESET), search spacesand additional parameters for acquiring the PDCCH. If this IE is usedfor the scheduled cell in case of cross carrier scheduling, the fieldsother than searchSpacesToAddModList and searchSpacesToReleaseList may beabsent. The IE PDCCH-Config may comprise a plurality of parameters. Aparameter controlResourceSetToAddModList may indicate a list of UEspecifically configured Control Resource Sets (CORESETs) to be used bythe UE. The network may configure at most 3 CORESETs per BWP per cell(including UE-specific and common CORESETs). In case networkreconfigures control resource set with the same ControlResourceSetId asused for commonControlResourceSet configured via PDCCH-ConfigCommon, theconfiguration from PDCCH-Config may take precedence and may not beupdated by the UE based on servingCellConfigCommon.

A parameter downlinkPreemption may indicate configuration of downlinkpreemption indications to be monitored in a cell. A parametermonitoringCapabilityConfig may configure Rel-15 PDCCH monitoringcapability or Rel-16 PDCCH monitoring capability for PDCCH monitoring ona serving cell. Value r15monitoringcapablity may enable the Rel-15monitoring capability, and value r16monitoringcapablity may enable theRel-16 PDCCH monitoring capability. The parametersearchSpacesToAddModList may indicate a list of UE specificallyconfigured Search Spaces. In an example, the network may configure atmost 10 Search Spaces per BWP per cell (including UE-specific and commonSearch Spaces). The parameter searchSpaceSwitchingGroupList may indicatea list of serving cells which may be bundled for the search space groupswitching purpose. The parameter searchSpaceSwitchingTimer may indicatethe timer in slots for monitoring PDCCH in the active DL BWP of theserving cell before moving to the default search space group. Theparameter tpc-PUCCH may enable and configure reception of group TPCcommands for PUCCH. The parameter tpc-PUSCH may enable and configurereception of group TPC commands for PUSCH. The parameter tpc-SRS mayenable and configure reception of group TPC commands for SRS. Theparameter uplinkCancellation may be used for configuration of uplinkcancellation indications to be monitored in a cell.

In an example, an IE PDCCH-ConfigCommon may be used to configure cellspecific PDCCH parameters provided in SIB as well as in dedicatedsignalling. The PDCCH-ConfigCommon IE may comprise a plurality ofparameters. A parameter commonControlResourceSet may indicate anadditional common control resource set which may be configured and usedfor any common or UE-specific search space. If the network configuresthis field, it uses a ControlResourceSetId other than 0 for thisControlResourceSet. The network configures the commonControlResourceSetin SIB1 so that it is contained in the bandwidth of CORESET#0. Aparameter commonSearchSpaceList may indicate a list of additional commonsearch spaces. If the network configures this field, it uses theSearchSpaceIds other than 0. A parameter controlResourceSetZero mayindicate parameters of the common CORESET#0 which may be used in anycommon or UE-specific search spaces. The values may be interpreted likethe corresponding bits in MIB pdcch-ConfigSIB1. Even though this fieldmay be configured in the initial BWP (BWP#0) controlResourceSetZero maybe used in search spaces configured in other DL BWP(s) than the initialDL BWP. A parameter firstPDCCH-MonitoringOccasionOfPO may indicate thefirst PDCCH monitoring occasion of each PO of the PF on the BWP. Aparameter pagingSearchSpace may indicate ID of the Search space forpaging. A parameter ra-SearchSpace may indicate ID of the Search spacefor random access procedure. A parametersearchSpaceOtherSystemInformation may indicate ID of the Search spacefor other system information, e.g., SIB2 and beyond. A parametersearchSpaceSIB1 may indicate ID of the search space for SIB1 message. Aparameter searchSpaceZero may indicate parameters of the commonSearchSpace#0.

In an example, an IE PDCCH-ConfigSIB1 may be used to configure CORESET#0and search space#0. A parameter controlResourceSetZero may indicate acommon ControlResourceSet (CORESET) with ID #0. A parametersearchSpaceZero may indicate a common search space with ID #0.

In an example, an IE PDCCH-ServingCellConfig may be used to configure UEspecific PDCCH parameters applicable across bandwidth parts of a servingcell. A parameter availabilityIndicator may be used to configuremonitoring a PDCCH for Availability Indicators (AI). A parameterslotFormatIndicator may be used for configuration ofSlot-Format-Indicators to be monitored in the correspondingly configuredPDCCHs of the serving cell.

In an example, an IE ControlResourceSet may be used to configure atime/frequency control resource set (CORESET) in which to search fordownlink control information. The IE ControlResourceSet may comprise aplurality of parameters. A parameter controlResourceSetId may identifythe instance of the ControlResourceSet IE. A parameter coresetPoolIndexmay indicate the index of the CORESET pool for the CORESET When absent,UE may use the index 0. A parameter duration may indicate contiguoustime duration of the CORESET in number of symbols. A parameterfrequencyDomainResources may indicate frequency domain resources for theCORESET. A parameter tci-PresentInDCI may indicate if TCI field ispresent or absent in a DCI format (e.g., DCI format 1_1). When the fieldis absent the UE may consider the TCI to be absent/disabled. In case ofcross carrier scheduling, the network may set this field to enabled forthe ControlResourceSet used for cross carrier scheduling in thescheduling cell. A parameter tci-PresentInDCI-ForDCI-Format1-2 mayindicate the number of bits for “Transmission configuration indicator”in DCI format 1_2. When the field is absent the UE may apply the valueof 0 bit for the “Transmission configuration indicator” in DCI format1_2. A parameter tci-StatesPDCCH-ToAddList may indicate a subset of theTCI states defined in pdsch-Config included in the BWP-DownlinkDedicatedcorresponding to the serving cell and to the DL BWP to which theControlResourceSet belong to. They may be used for providing QCLrelationships between the DL RS(s) in one RS Set (TCI-State) and thePDCCH DMRS ports. The network may configure at mostmaxNrofTCI-StatesPDCCH entries.

In an example, the ControlResourceSetId IE may indicate a shortidentity, used to identify a control resource set within a serving cell.The ControlResourceSetId=0 may identify the ControlResourceSet#0configured via PBCH (MIB) and in controlResourceSetZero(ServingCellConfigCommon). The ID space may be used across the BWPs of aServing Cell.

In an example, an IE ControlResourceSetZero may be used to configureCORESET#0 of the initial BWP.

In an example, an IE SearchSpace may define how/where to search forPDCCH candidates. A search space may be associated with oneControlResourceSet. For a scheduled cell in the case of cross carrierscheduling, except for nrofCandidates, the optional fields may beabsent. The ControlResourceSetZero IE may comprise a plurality ofparameters. A parameter common may configure the search space as commonsearch space (CSS) and DCI formats to monitor. A parametercontrolResourceSetId may indicate a CORESET applicable for thisSearchSpace. Value 0 may identify the common CORESET#0 configured in MIBand in ServingCellConfigCommon. Values 1 . . .maxNrofControlResourceSets-1 may identify CORESETs configured in SystemInformation or by dedicated signalling. The CORESETs with non-zerocontrolResourceSetId may be configured in the same BWP as thisSearchSpace. A parameter duration may indicate a number of consecutiveslots that a SearchSpace lasts in every occasion, e.g., upon everyperiod as given in the periodicityAndOffset. If the field is absent, theUE may apply the value 1 slot, except for DCI format 2_0. The UE mayignore this field for DCI format 2_0. The maximum valid duration may beperiodicity-1 (periodicity as given in themonitoringSlotPeriodicityAndOffset). A parametermonitoringSlotPeriodicityAndOffset may indicate slots for PDCCHMonitoring configured as periodicity and offset. A parametermonitoringSymbolsWithinSlot may indicate the first symbol(s) for PDCCHmonitoring in the slots configured for PDCCH monitoring (e.g., based onmonitoringSlotPeriodicityAndOffset and duration). The most significant(left) bit may represent the first OFDM in a slot, and the second mostsignificant (left) bit may represent the second OFDM symbol in a slotand so on. The bit(s) set to one may identify the first OFDM symbol(s)of the control resource set within a slot. If the cyclic prefix of theBWP is set to extended CP, the last two bits within the bit string maybe ignored by the UE. For DCI format 2_0, the first one symbol may applyif the duration of CORESET (in the IE ControlResourceSet) identified bycontrolResourceSetId indicates 3 symbols, the first two symbols mayapply if the duration of CORESET identified by controlResourceSetIdindicates 2 symbols, and the first three symbols apply if the durationof CORESET identified by controlResourceSetId indicates 1 symbol. Aparameter nrofCandidates may indicate a number of PDCCH candidates peraggregation level. A parameter searchSpaceGroupIdList may indicate alist of search space group IDs which the search space set is associatedwith. A parameter searchSpaceId may identify the search space.SearchSpaceId=0 may identify the searchSpaceZero configured via PBCH(MIB) or ServingCellConfigCommon and may not be used in the SearchSpaceIE. The searchSpaceId may be unique among the BWPs of a Serving Cell. Incase of cross carrier scheduling, search spaces with the samesearchSpaceId in scheduled cell and scheduling cell may be linked toeach other. The UE may apply the search space for the scheduled cell ifthe DL BWPs in which the linked search spaces are configured inscheduling cell and scheduled cell are both active. A parametersearchSpaceType may indicate whether this is a common search space(present) or a UE specific search space as well as DCI formats tomonitor for. A parameter ue-Specific may configure the search space asUE specific search space (USS). The UE may monitor the DCI format withCRC scrambled by C-RNTI, CS-RNTI (if configured), and SP-CSI-RNTI (ifconfigured).

In an example, an IE SearchSpaceId may be used to identify SearchSpaces. The ID space may be used across the BWPs of a Serving Cell. Thesearch space with the SearchSpaceId=0 may identify the search spaceconfigured via PBCH (MIB) and in ServingCellConfigCommon(searchSpaceZero). The number of Search Spaces per BWP may be limited to10 including the common and UE specific Search Spaces.

In an example, an IE SearchSpaceZero may be used to configureSearchSpace#0 of the initial BWP.

In an example, a UE may monitor a set of PDCCH candidates in one or moreCORESETs on the active DL BWP on an activated serving cell configuredwith PDCCH monitoring according to corresponding search space sets wheremonitoring implies decoding a PDCCH candidate according to the monitoredDCI formats.

In an example, if a UE is provided PDCCHMonitoringCapabilityConfig for aserving cell, the UE may obtain an indication to monitor PDCCH on theserving cell for a maximum number of PDCCH candidates andnon-overlapping CCEs per slot or per span depending on a value of thePDCCHMonitoringCapabilityConfig parameter. If the UE is not providedPDCCHMonitoringCapabilityConfig, the UE may monitor PDCCH on the servingcell per slot.

In an example, a UE may report one or more combinations of (X, Y) numberof symbols, where X≥Y, for PDCCH monitoring. A span may be a set ofconsecutive symbols in a slot in which the UE may be configured tomonitor PDCCH candidates. The UE may support PDCCH monitoring occasionsin a symbol of a slot with minimum time separation of X symbols betweenthe first symbol of two consecutive spans, including across slots. Theduration of a span may be d_(span)=max(d_(CORESET,max), Y_(min)), whered_(CORESET,max) may be a maximum duration among durations of CORESETsthat are configured to the UE and Y_(min) may be a minimum value of Y inthe combinations of (X, Y) that are reported by the UE. A last span in aslot may have a shorter duration than other spans in the slot.

In an example, a UE capability for PDCCH monitoring per slot or per spanon an active DL BWP of a serving cell may be defined by a maximum numberof PDCCH candidates and non-overlapped CCEs the UE may monitor per slotor per span, respectively, on the active DL BWP of the serving cell.

In an example, a set of PDCCH candidates for a UE to monitor may bedefined in terms of PDCCH search space sets. A search space set may be acommon search space (CSS) set or a UE specific search space (USS) set. AUE may monitor PDCCH candidates in one or more of the following searchspaces sets: a Type0-PDCCH CSS set configured by pdcch-ConfigSIB1 in MIBor by searchSpaceSIB1 in PDCCH-ConfigCommon or by searchSpaceZero inPDCCH-ConfigCommon for a DCI format with CRC scrambled by a SI-RNTI onthe primary cell of the MCG; a Type0A-PDCCH CSS set configured bysearchSpaceOtherSystemInformation in PDCCH-ConfigCommon for a DCI formatwith CRC scrambled by a SI-RNTI on the primary cell of the MCG; aType1-PDCCH CSS set configured by ra-SearchSpace in PDCCH-ConfigCommonfor a DCI format with CRC scrambled by a RA-RNTI, a MsgB-RNTI, or aTC-RNTI on the primary cell; a Type2-PDCCH CSS set configured bypagingSearchSpace in PDCCH-ConfigCommon for a DCI format with CRCscrambled by a P-RNTI on the primary cell of the MCG; a Type3-PDCCH CSSset configured by SearchSpace in PDCCH-Config withsearchSpaceType=common for DCI formats with CRC scrambled by INT-RNTI,SFI-RNTI, TPC-PUSCH-RNTI, TPC-PUCCH-RNTI, TPC-SRS-RNTI, CI-RNTI, orPS-RNTI and, only for the primary cell, C-RNTI, MCS-C-RNTI, orCS-RNTI(s); and a USS set configured by SearchSpace in PDCCH-Config withsearchSpaceType=ue-Specific for DCI formats with CRC scrambled byC-RNTI, MCS-C-RNTI, SP-CSI-RNTI, CS-RNTI(s), SL-RNTI, SL-CS-RNTI, orSL-L-CS-RNTI.

In an example, if a UE may be provided a zero value for searchSpaceID inPDCCH-ConfigCommon for a Type0/0A/2-PDCCH CSS set, the UE may determinemonitoring occasions for PDCCH candidates of the Type0/0A/2-PDCCH CSSset, and the UE may be provided a C-RNTI, the UE may monitor PDCCHcandidates at monitoring occasions associated with a SS/PBCH block,where the SS/PBCH block may be determined by the most recent of: a MACCE activation command indicating a TCI state of the active BWP thatincludes a CORESET with index 0, where the TCI-state includes a CSI-RSwhich is quasi-co-located with the SS/PBCH block; or a random accessprocedure that is not initiated by a PDCCH order that triggers acontention-free random access procedure.

In an example, if a UE monitors PDCCH candidates for DCI formats withCRC scrambled by a C-RNTI and the UE is provided a non-zero value forsearchSpaceID in PDCCH-ConfigCommon for a Type0/0A/2-PDCCH CSS set, theUE may determine monitoring occasions for PDCCH candidates of theType0/0A/2-PDCCH CSS set based on the search space set associated withthe value of searchSpaceID.

In an example, the UE may assume that the DM-RS antenna port associatedwith PDCCH receptions in the CORESET configured by pdcch-ConfigSIB1 inMIB, the DM-RS antenna port associated with corresponding PDSCHreceptions, and the corresponding SS/PBCH block are quasi co-locatedwith respect to average gain, QCL-TypeA, and QCL-TypeD properties, whenapplicable, if the UE is not provided a TCI state indicating quasico-location information of the DM-RS antenna port for PDCCH reception inthe CORESET. The value for the DM-RS scrambling sequence initializationmay be the cell ID. A SCS may be provided by subCarrierSpacingCommon inMIB.

In an example, for a DL BWP configured to a UE in a serving cell, the UEmay be provided by higher layer signalling with P≤3 CORESETs ifCORESETPoolIndex is not provided, or if a value of CORESETPoolIndex issame for all CORESETs if CORESETPoolIndex is provided.

In an example, for a DL BWP configured to a UE in a serving cell, the UEmay be provided by higher layer signalling with P≤5 CORESETs ifCORESETPoolIndex is not provided for a first CORESET, or is provided andhas a value 0 for a first CORESET, and is provided and has a value 1 fora second CORESET.

In an example, for a CORESET, the UE may be provided parameters byControlResourceSet. The parameters may comprise a CORESET index p, bycontrolResourceSetId, where 0≤p<12 if CORESETPoolIndex is not provided,or if a value of CORESETPoolIndex is same for all CORESETs ifCORESETPoolIndex is provided; 0<p<16 if CORESETPoolIndex is not providedfor a first CORESET, or is provided and has a value 0 for a firstCORESET, and is provided and has a value 1 for a second CORESET. Theparameters may comprise a DM-RS scrambling sequence initialization valueby pdcch-DMRS-ScramblingID. The parameters may comprise a precodergranularity for a number of REGs in the frequency domain where the UEmay assume use of a same DM-RS precoder by precoderGranularity. Theparameters may comprise a number of consecutive symbols provided byduration. The parameters may comprise a set of resource blocks providedby frequencyDomainResources. The parameters may comprise CCE-to-REGmapping parameters provided by cce-REG-MappingType. The parameters maycomprise an antenna port quasi co-location, from a set of antenna portquasi co-locations provided by TCI-State, indicating quasi co-locationinformation of the DM-RS antenna port for PDCCH reception in arespective CORESET. If the UE is provided by simultaneous TCI-CellList anumber of lists of cells for simultaneous TCI state activation, the UEmay apply the antenna port quasi co-location provided by TCI-States withsame activated tci-StateID value to CORESETs with index p in allconfigured DL BWPs of all configured cells in a list determined from aserving cell index provided by a MAC CE command. The parameters maycomprise an indication for a presence or absence of a transmissionconfiguration indication (TCI) field for a DCI format, other than DCIformat 1_0, that schedules PDSCH receptions or indicates SPS PDSCHrelease and is transmitted by a PDCCH in CORESET p, by tci-PresentInDCIor tci-PresentInDCI-ForDCIFormat1_2.

In an example, for a CORESET in a DL BWP of a serving cell, a respectivefrequencyDomainResources may provide a bitmap indicating radio resourcesfor CORESET.

In an example, for a CORESET with index 0, the UE may assume that aDM-RS antenna port for PDCCH receptions in the CORESET is quasico-located with the one or more DL RS configured by a TCI state, wherethe TCI state is indicated by a MAC CE activation command for theCORESET, if any, or a SS/PBCH block the UE identified during a mostrecent random access procedure not initiated by a PDCCH order thattriggers a contention-free random access procedure, if no MAC CEactivation command indicating a TCI state for the CORESET is receivedafter the most recent random access procedure.

In an example, for a CORESET other than a CORESET with index 0, if a UEis provided a single TCI state for a CORESET, or if the UE receives aMAC CE activation command for one of the provided TCI states for aCORESET, the UE may assume that the DM-RS antenna port associated withPDCCH receptions in the CORESET is quasi co-located with the one or moreDL RS configured by the TCI state. For a CORESET with index 0, the UEmay expect that QCL-TypeD of a CSI-RS in a TCI state indicated by a MACCE activation command for the CORESET is provided by a SS/PBCH block.

For a DL BWP configured to a UE in a serving cell, the UE may beprovided by higher layers with S (e.g., S≤10) search space sets where,for each search space set from the S search space sets, the UE may beprovided the following by SearchSpace: search space set index s, 0<s<40,by searchSpaceId; an association between the search space set S and aCORESET P by controlResourceSetId; a PDCCH monitoring periodicity ofk_(s) slots and a PDCCH monitoring offset of O_(s) slots, bymonitoringSlotPeriodicityAndOffset; a PDCCH monitoring pattern within aslot, indicating first symbol(s) of the CORESET within a slot for PDCCHmonitoring, by monitoringSymbolsWithinSlot; a duration of T_(s)<k_(s)slots indicating a number of slots that the search space set S exists byduration; a number of PDCCH candidates M_(s) ^((L)) per CCE aggregationlevel L by aggregationLevel1, aggregationLevel2, aggregationLevel4,aggregationLevel8, and aggregationLevel16, for CCE aggregation level 1,CCE aggregation level 2, CCE aggregation level 4, CCE aggregation level8, and CCE aggregation level 16, respectively; an indication that searchspace set S is either a CSS set or a USS set by searchSpaceType; ifsearch space set s is a CSS set: an indication bydci-Format0-0-AndFormat1-0 to monitor PDCCH candidates for DCI format0_0 and DCI format 1_0, an indication by dci-Format2-0 to monitor one ortwo PDCCH candidates for DCI format 2_0 and a corresponding CCEaggregation level, an indication by dci-Format2-1 to monitor PDCCHcandidates for DCI format 2_1, an indication by dci-Format2-2 to monitorPDCCH candidates for DCI format 2_2, an indication by dci-Format2-3 tomonitor PDCCH candidates for DCI format 2_3, an indication bydci-Format2-4 to monitor PDCCH candidates for DCI format 2_4, anindication by dci-Format2-6 to monitor PDCCH candidates for DCI format2_6; if search space set s is a USS set, an indication by dci-Formats tomonitor PDCCH candidates either for DCI format 0_0 and DCI format 1_0,or for DCI format 0_1 and DCI format 1_1, or an indication bydci-Formats-Rel16 to monitor PDCCH candidates for DCI format 0_0 and DCIformat 1_0, or for DCI format 0_1 and DCI format 1_1, or for DCI format0_2 and DCI format 1_2, or, if a UE indicates a correspondingcapability, for DCI format 0_1, DCI format 1_1, DCI format 0_2, and DCIformat 1_2, or for DCI format 3_0, or for DCI format 3_1, or for DCIformat 3_0 and DCI format 3_1; a bitmap by freqMonitorLocation-r16, ifprovided, to indicate one or more RB sets for the search space set s,where the MSB k in the bitmap corresponds to RB set k−1 in the DL BWP.For RB set k indicated in the bitmap, the first PRB of the frequencydomain monitoring location confined within the RB set is given byN_(RB,set k) ^(start)+N_(RB) ^(offset), where N_(RB,set k) ^(start) isthe index of first PRB of the RB set k, and N_(RB) ^(offset) is providedby rb-offset or N_(RB) ^(offset)=0 if rb-offset is not provided. Thefrequency domain resource allocation pattern for each monitoringlocation is determined based on the first N_(RBG,set 0) ^(size) bits infrequencyDomainResources provided by the associated CORESETconfiguration.

In an example, a UE may determine a PDCCH monitoring occasion on anactive DL BWP from the PDCCH monitoring periodicity, the PDCCHmonitoring offset, and the PDCCH monitoring pattern within a slot. Forsearch space set s, the UE may determine that a PDCCH monitoringoccasion(s) exists in a slot with number n_(s,f) ^(μ) in a frame withnumber n_(f) if (n_(f)·N_(slot) ^(frame,μ)+n_(s,f) ^(μ)−o_(s))modk_(s)=0. The UE may monitor PDCCH candidates for search space set S forT_(s) consecutive slots, starting from slot n_(s,f) ^(μ), and may notmonitor PDCCH candidates for search space set S for the next k_(s)−T_(s)consecutive slots.

In an example, a USS at CCE aggregation level L ∈ {1, 2, 4, 8, 16} isdefined by a set of PDCCH candidates for CCE aggregation level L.

In an example, a UE may expect to monitor PDCCH candidates for up to 4sizes of DCI formats that include up to 3 sizes of DCI formats with CRCscrambled by C-RNTI per serving cell. The UE may count a number of sizesfor DCI formats per serving cell based on a number of configured PDCCHcandidates in respective search space sets for the corresponding activeDL BWP.

In an example, CCEs for PDCCH candidates may be non-overlapped if theycorrespond to different CORESET indexes, or different first symbols forthe reception of the respective PDCCH candidates.

A wireless device may operate in one or more of a plurality of usagescenarios including enhanced mobile broadband (eMBB), massivemachine-type communication (mMTC), and Ultra-Reliable and Low Latencycommunication (URLLC). In an example, a usage scenario may be timesensitive communication (TSC). The eMBB, mMTC, URLLC and TSC use casesmay be supported in the same network.

In an example, a mobile communication system may enable connectedindustries. The mobile communication system may enable improvedflexibility, enhanced productivity and efficiency, reduced maintenancecost, and improved operational safety. Devices in such environment mayinclude, for example, pressure sensors, humidity sensors, thermometers,motion sensors, accelerometers, actuators, etc. These devices mayconnect to radio access and core networks.

A wireless device type may be a reduced capability (RedCap) type.Example wireless device requirements may include lower cost andcomplexity (for example for the case of industrial sensors) as comparedto high-end eMBB and URLLC devices and/or smaller device size withcompact form factor.

Example UE complexity reduction features include: reduced number of UERX/TX antennas, reduced UE Bandwidth, Half-Duplex-FDD, relaxed UEprocessing time and relaxed UE processing capability. A reducedcapability UE may use power saving and battery lifetime enhancementssuch as reduced PDCCH monitoring by smaller numbers of blind decodes andCCE limits, extended DRX for RRC Inactive and/or Idle, RRM relaxationfor stationary devices, etc. The reduced capability UE may usefunctionality that may enable the performance degradation of suchcomplexity reduction to be mitigated or limited, including coveragerecovery to compensate for potential coverage reduction due to thedevice complexity reduction.

In an example, reduced capability devices may be explicitly identifiableto networks and network operators.

In an example, with a limited CORESET duration (e.g., a maximum 3symbols for a CORESET duration) a limited number of CCEs (e.g., 24 CCEsin 20 MHz) may be used to transmit PDCCH when the CORESET duration islimited. The limited number of CCEs may impact the PDCCH reliability andthe flexibility of multiple UE scheduling. The PDCCH at the highaggregation level may be preferred to be transmitted in UEs with reducedcapability (e.g., RedCap UEs) compensating the Rx antenna degradation,which may require to allocate more resources to PDCCH. Exampleembodiments may use enhanced CORESET/PDCCH design for PDCCH coveragerecovery.

In an example, the number of CCEs in one slot may be increased byconfiguring more symbols for a CORESET. An example is shown in FIG. 16.For example, a six-symbol length CORESET may be configured for oneCORESET within one slot. The PDSCH and the associated DMRS may have tobe transmitted at the seventh symbol of a slot or in the later slots. Anew resource mapping process may be used based on using a longer CORESETduration (e.g., longer than three symbols). In an example, resourcecollision avoidance processes may be used to avoid resource collisionsdue to the different CCE mapping rules if CORESET for RedCap UEs andthat for normal UEs are configured with overlapping resources.

In an example, a CORESET bundling/concatenating process may be used toincrease the CCE number for PDCCH transmission. Examples are shown inFIG. 17 and FIG. 18. A plurality of CORESETs (e.g., a plurality ofCORESETs at different time occasions) may be bundled to increase the CCEnumber. The wireless device may receive configuration parametersindicating that the plurality of CORESETs may be used for bundling andincreasing the number of CCEs for transmission of PDCCH. The bundledCORESETs may be transmitted in the same slot or several different slots.An encoded DCI may be split into several parts and mapped to the bundledCORESETs. A RedCap UE may collect/aggregate the desired CCEs from thebundled CORESETs according to a predefined or a configured CCE mappingrule and decode DCI.

In an example, PDCCH repetition may be used to increase PDCCHreliability. Examples are shown in FIG. 19 and FIG. 20. A PDCCHrepetition may be intra-slot PDCCH repetition or inter-slot PDCCHrepetition. For inter-slot PDCCH repetition, the base station maytransmit a DCI repetitively in a plurality of CORESETs in a plurality ofslots (e.g., the continuous slots). For intra-slot PDCCH repetition, thebase station may transmit a DCI repetitively in plurality of CORESETswithin a slot. A RedCap UE may combine the received signals of theseCORESETs to further increase the detection reliability.

In an example, a PDCCH candidate may correspond to an aggregation leveland a repetition number. One or more PDCCH candidates with the sameaggregation level and same repetition number may be configured in thesearch space configuration. The DCI may be assumed to be repeated in thesame resources (e.g., related with same aggregation level) in therepetitions.

In an example, a CORESET may be repeated in time or frequency,effectively creating an extended CORESET. In an example, the repeatedPDCCH may be discontinuous in time if it occupies fewer symbols than theCORESET duration. In an example, higher aggregation levels may be usedin conjunction with an extended CORESET for RedCap UEs.

In an example, an IE TCI-State may associate one or more DL referencesignals with a corresponding quasi-colocation (QCL) type. The IETCI-State may comprise a plurality of parameters. The plurality ofparameters may comprise a bwp-Id indicating the DL BWP which the RS islocated in. A cell parameter may indicate a UE's serving cell in whichthe reference Signal is configured. If the field is absent, it may applyto the serving cell in which the TCI-State is configured. The RS can belocated on a serving cell other than the serving cell in which theTCI-State is configured for one or more QCL type (e.g., if the qcl-Typeis configured as typeC or typed). A parameter reference Signal mayindicate a reference signal with which quasi-collocation information isprovided. A qcl-Type parameter may indicate a QCL type.

In an example, an IE TCI-StateId may be used to identify a TCI-Stateconfiguration.

In an example, a UE may be configured with a list of up to M TCI-Stateconfigurations within the higher layer parameter PDSCH-Config to decodePDSCH according to a detected PDCCH with DCI intended for the UE and thegiven serving cell, where M may depend on a UE capability (e.g.,maxNumberConfiguredTCIstatesPerCC). A TCI-State may contain parametersfor configuring a quasi co-location relationship between one or twodownlink reference signals and the DM-RS ports of the PDSCH, the DM-RSport of PDCCH or the CSI-RS port(s) of a CSI-RS resource. The quasico-location relationship may be configured by the higher layer parameterqcl-Type1 for the first DL RS, and qcl-Type2 for the second DL RS (ifconfigured). For the case of two DL RSs, the QCL types may not be thesame, regardless of whether the references are to the same DL RS ordifferent DL RSs.

The quasi co-location types corresponding to a DL RS may be given by thehigher layer parameter qcl-Type in QCL-Info and may take one of thefollowing values: ‘QCL-TypeA’: {Doppler shift, Doppler spread, averagedelay, delay spread}; ‘QCL-TypeB’: {Doppler shift, Doppler spread};‘QCL-TypeC’: {Doppler shift, average delay}; and ‘QCL-TypeD’: {SpatialRx parameter}.

In an example, a UE may receive an activation command (e.g., a MACcontrol element) used to map up to 8 TCI states to the codepoints of theDCI field ‘Transmission Configuration Indication’ in one CC/DL BWP or ina set of CCs/DL BWPs, respectively. When a set of TCI state IDs areactivated for a set of CCs/DL BWPs, where the applicable list of CCs isdetermined by indicated CC in the activation command, the same set ofTCI state IDs may be applied for DL BWPs in the indicated CCs.

In an example, when a UE supports two TCI states in a codepoint of theDCI field ‘Transmission Configuration Indication’ the UE may receive anactivation command, the activation command may be used to map up to 8combinations of one or two TCI states to the codepoints of the DCI field‘Transmission Configuration Indication’. The UE may not be expected toreceive more than 8 TCI states in the activation command.

In an example, when the UE would transmit a PUCCH with HARQ-ACKinformation in slot n corresponding to the PDSCH carrying the activationcommand, the indicated mapping between TCI states and codepoints of theDCI field ‘Transmission Configuration Indication’ may be appliedstarting from the first slot that is after slot n+3N_(slot)^(subframe,μ) where □ is the SCS configuration for the PUCCH. Iftci-PresentInDCI is set to “enabled” or tci-PresentInDCI-ForFormat1_2 isconfigured for the CORESET scheduling the PDSCH, and the time offsetbetween the reception of the DL DCI and the corresponding PDSCH is equalto or greater than timeDurationForQCL if applicable, after a UE receivesan initial higher layer configuration of TCI states and before receptionof the activation command, the UE may assume that the DM-RS ports ofPDSCH of a serving cell are quasi co-located with the SS/PBCH blockdetermined in the initial access procedure with respect to ‘QCL-TypeA’,and when applicable, also with respect to ‘QCL-TypeD’.

In an example, if a UE is configured with the higher layer parametertci-PresentInDCI that is set as ‘enabled’ for the CORESET scheduling thePDSCH, the UE may assume that the TCI field is present in the DCI format1_1 of the PDCCH transmitted on the CORESET. In an example, if a UE isconfigured with the higher layer parameter tci-PresentInDCI-ForFormat1_2for the CORESET scheduling the PDSCH, the UE may assume that the TCIfield with a DCI field size indicated by tci-PresentInDCI-ForFormat1_2is present in the DCI format 1_2 of the PDCCH transmitted on theCORESET. If the PDSCH is scheduled by a DCI format not having the TCIfield present, and the time offset between the reception of the DL DCIand the corresponding PDSCH is equal to or greater than a thresholdtimeDurationForQCL if applicable, where the threshold is based onreported UE capability, for determining PDSCH antenna port quasico-location, the UE may assume that the TCI state or the QCL assumptionfor the PDSCH is identical to the TCI state or QCL assumption whicheveris applied for the CORESET used for the PDCCH transmission.

In an example, if the PDSCH is scheduled by a DCI format having the TCIfield present, the TCI field in DCI in the scheduling component carrierpoints to the activated TCI states in the scheduled component carrier orDL BWP, the UE may use the TCI-State according to the value of the‘Transmission Configuration Indication’ field in the detected PDCCH withDCI for determining PDSCH antenna port quasi co-location. The UE mayassume that the DM-RS ports of PDSCH of a serving cell are quasico-located with the RS(s) in the TCI state with respect to the QCL typeparameter(s) given by the indicated TCI state if the time offset betweenthe reception of the DL DCI and the corresponding PDSCH is equal to orgreater than a threshold timeDurationForQCL, where the threshold may bebased on reported UE capability. When the UE is configured with a singleslot PDSCH, the indicated TCI state may be based on the activated TCIstates in the slot with the scheduled PDSCH. When the UE is configuredwith a multi-slot PDSCH, the indicated TCI state may be based on theactivated TCI states in the first slot with the scheduled PDSCH, and UEmay expect the activated TCI states are the same across the slots withthe scheduled PDSCH. When the UE is configured with CORESET associatedwith a search space set for cross-carrier scheduling and the UE is notconfigured with [enableDefaultBeamForCSS], the UE may expecttci-PresentInDCI is set as ‘enabled’ or tci-PresentInDCI-ForFormat1_2 isconfigured for the CORESET, and if one or more of the TCI statesconfigured for the serving cell scheduled by the search space setcontains ‘QCL-TypeD’, the UE may expect the time offset between thereception of the detected PDCCH in the search space set and thecorresponding PDSCH is larger than or equal to the thresholdtimeDurationForQCL.

In an example, independent of the configuration of tci-PresentInDCI andtci-PresentInDCI-ForFormat1_2 in RRC connected mode, if no TCIcodepoints are mapped to two different TCI states and the offset betweenthe reception of the DL DCI and the corresponding PDSCH is less than thethreshold timeDurationForQCL, the UE may assume that the DM-RS ports ofPDSCH of a serving cell are quasi co-located with the RS(s) with respectto the QCL parameter(s) used for PDCCH quasi co-location indication ofthe CORESET associated with a monitored search space with the lowestcontrolResourceSetId in the latest slot in which one or more CORESETswithin the active BWP of the serving cell are monitored by the UE. Inthis case, if the ‘QCL-TypeD’ of the PDSCH DM-RS is different from thatof the PDCCH DM-RS with which they overlap in at least one symbol, theUE may be expected to prioritize the reception of PDCCH associated withthat CORESET. This may also apply to the intra-band CA case (when PDSCHand the CORESET are in different component carriers). If none ofconfigured TCI states for the serving cell of scheduled PDSCH contains‘QCL-TypeD’, the UE may obtain the other QCL assumptions from theindicated TCI states for its scheduled PDSCH irrespective of the timeoffset between the reception of the DL DCI and the corresponding PDSCH.If a UE configured by higher layer parameter PDCCH-Config that containstwo different values of CORESETPoolIndex in ControlResourceSet, for bothcases, when tci-PresentInDCI is set to ‘enabled’ and tci-PresentInDCI isnot configured in RRC connected mode, if the offset between thereception of the DL DCI and the corresponding PDSCH is less than thethreshold timeDurationForQCL, the UE may assume that the DM-RS ports ofPDSCH associated with a value of CORESETPoolIndex of a serving cell arequasi co-located with the RS(s) with respect to the QCL parameter(s)used for PDCCH quasi co-location indication of the CORESET associatedwith a monitored search space with the lowest CORESET-ID among CORESETs,which are configured with the same value of CORESETPoolIndex as thePDCCH scheduling that PDSCH, in the latest slot in which one or moreCORESETs associated with the same value of CORESETPoolIndex as the PDCCHscheduling that PDSCH within the active BWP of the serving cell aremonitored by the UE. If the offset between the reception of the DL DCIand the corresponding PDSCH is less than the thresholdtimeDurationForQCL and at least one configured TCI states for theserving cell of scheduled PDSCH contains the ‘QCL-TypeD’, and at leastone TCI codepoint indicates two TCI states, the UE may assume that theDM-RS ports of PDSCH of a serving cell are quasi co-located with theRS(s) with respect to the QCL parameter(s) associated with the TCIstates corresponding to the lowest codepoint among the TCI codepointscontaining two different TCI states.

In an example, the network may activate and deactivate the configuredTCI states for PDSCH of a Serving Cell or a CC list by sending the TCIStates Activation/Deactivation for UE-specific PDSCH MAC CE. Theconfigured TCI states for PDSCH may be initially deactivated uponconfiguration and after a handover.

In an example, if the MAC entity receives a TCI StatesActivation/Deactivation for UE-specific PDSCH MAC CE on a Serving Cell,a MAC entity may indicate to lower layers the information regarding theTCI States Activation/Deactivation for UE-specific PDSCH MAC CE.

In an example, the network may indicate a TCI state for PDCCH receptionfor a CORESET of a Serving Cell or a CC list by sending the TCI StateIndication for UE-specific PDCCH MAC CE.

In an example, if the MAC entity receives a TCI State Indication forUE-specific PDCCH MAC CE on a Serving Cell, the MAC entity may indicateto lower layers the information regarding the TCI State Indication forUE-specific PDCCH MAC CE.

In an example, the network may activate and deactivate the configuredTCI states for the codepoint of the DCI Transmission configurationindication field for PDSCH of a Serving Cell by sending the Enhanced TCIStates Activation/Deactivation for UE-specific PDSCH MAC CE. Theconfigured TCI states for PDSCH may be initially deactivated uponconfiguration and after a handover.

In an example, if the MAC entity receives an Enhanced TCI StatesActivation/Deactivation for UE-specific PDSCH MAC CE on a Serving Cell,the MAC entity may indicate to lower layers the information regardingthe Enhanced TCI States Activation/Deactivation for UE-specific PDSCHMAC CE.

An example TCI States Activation/Deactivation for UE-specific PDSCH MACCE is shown in FIG. 21. In an example, a TCI StatesActivation/Deactivation for UE-specific PDSCH MAC CE may be identifiedby a MAC subheader with a corresponding LCID. The UE-specific PDSCH MACCE may have a variable size comprising a plurality of fields. Theplurality of fields may comprise a Serving Cell ID field which mayindicate the identity of the Serving Cell for which the MAC CE applies.The length of the field may be 5 bits. If the indicated Serving Cell isconfigured as part of a CC-list, this MAC CE may applies to the CCs inthe CC list. The plurality of fields may comprise a Serving Cell IDfield which may indicate the identity of the Serving Cell for which theMAC CE applies. The length of the field may be 5 bits. If the indicatedServing Cell is configured as part of a CC-list, this MAC CE may applyto the CCs in the CC list. The plurality of fields may comprise aServing Cell ID field which may indicate the identity of the ServingCell for which the MAC CE applies. The length of the field may be 5bits. If the indicated Serving Cell is configured as part of a CC-listas specified, this MAC CE may apply to the CCs in the CC list. Theplurality of fields may comprise a BWP ID field which may indicate a DLBWP for which the MAC CE applies as the codepoint of the DCI bandwidthpart indicator field. The length of the BWP ID field may be 2 bits. Thisfield may be ignored if the MAC CE applies to a CC list. The pluralityof fields may comprise a Ti field. If there is a TCI state withTCI-StateId i, this field may indicate the activation/deactivationstatus of the TCI state with TCI-StateId i, otherwise MAC entity mayignore the Ti field. The Ti field may be set to 1 to indicate that theTCI state with TCI-StateId i may be activated and mapped to thecodepoint of the DCI Transmission Configuration Indication field. The Tifield may be set to 0 to indicate that the TCI state with TCI-StateId imay be deactivated and may not be mapped to the codepoint of the DCITransmission Configuration Indication field. The codepoint to which theTCI State is mapped is determined by its ordinal position among the TCIStates with Ti field set to 1. The first TCI State with Ti field set to1 may be mapped to the codepoint value 0, second TCI State with Ti fieldset to 1 may be mapped to the codepoint value 1 and so on. The maximumnumber of activated TCI states may be 8. The plurality of fields maycomprise a CORESET Pool ID: This field indicates that mapping betweenthe activated TCI states and the codepoint of the DCI TransmissionConfiguration Indication set by field Ti is specific to theControlResourceSetId configured with CORESET Pool ID as specified in TS38.331 [5]. This field may be set to 1 indicating that this MAC CE maybe applied for the DL transmission scheduled by CORESET with the CORESETpool ID equal to 1, otherwise, this MAC CE may be applied for the DLtransmission scheduled by CORESET pool ID equal to 0.

An example TCI State Indication for UE-specific PDCCH MAC CE is shown inFIG. 22. In an example, a TCI State Indication for UE-specific PDCCH MACCE may be identified by a MAC subheader with a corresponding LCID. TheUE-specific PDCCH MAC CE may have a fixed size of 16 bits with aplurality of fields. The plurality of fields may comprise a Serving CellID field indicating the identity of the Serving Cell for which the MACCE applies. The length of the field may be 5 bits. If the indicatedserving cell is configured as part of a CC-list, this MAC CE may applyto the CCs in the CC list. The plurality of fields may comprise aCORESET ID field which indicates a Control Resource Set identified withControlResourceSetId, for which the TCI State is being indicated. Incase the value of the field is 0, the field refers to the ControlResource Set configured by controlResourceSetZero. The length of thefield may be 4 bits. The plurality of fields may comprise a TCI State IDfield indicating the TCI state identified by TCI-StateId applicable tothe Control Resource Set identified by CORESET ID field. If the field ofCORESET ID is set to 0, this field may indicate a TCI-StateId for a TCIstate of the first 64 TCI-states configured by tci-States-ToAddModListand tci-States-ToReleaseList in the PDSCH-Config in the active BWP. Ifthe field of CORESET ID is set to the other value than 0, this field mayindicate a TCI-StateId configured by tci-StatesPDCCH-ToAddList andtci-StatesPDCCH-ToReleaseList in the controlResourceSet identified bythe indicated CORESET ID. The length of the field may be 7 bits.

An example Enhanced TCI States Activation/Deactivation for UE-specificPDSCH MAC CE is shown in FIG. 23. In an example, an Enhanced TCI StatesActivation/Deactivation for UE-specific PDSCH MAC CE may be identifiedby a MAC PDU subheader with a corresponding LCID. This MAC CE may have avariable size comprising a plurality of fields. The plurality of fieldsmay comprise a Serving Cell ID field indicating the identity of theServing Cell for which the MAC CE applies. The length of the field maybe 5 bits. The plurality of fields may comprise a BWP ID fieldindicating a DL BWP for which the MAC CE applies as the codepoint of theDCI bandwidth part indicator field. The length of the BWP ID field maybe 2 bits. The plurality of fields may comprise Ci fields indicatingwhether the octet containing TCI state IDi,2 is present. If this fieldis set to “1”, the octet containing TCI state IDi,2 may be present. Ifthis field is set to “0”, the octet containing TCI state IDi,2 may notbe present. The plurality of fields may comprise TCI state IDi,j fieldsindicating the TCI state identified by TCI-StateId, where i may be theindex of the codepoint of the DCI Transmission configuration indicationfield and TCI state IDi,j may denote the jth TCI state indicated for theith codepoint in the DCI Transmission Configuration Indication field.The TCI codepoint to which the TCI States are mapped may be determinedby its ordinal position among all the TCI codepoints with sets of TCIstate IDi,j fields, e.g., the first TCI codepoint with TCI state ID0,1and TCI state ID0,2 may be mapped to the codepoint value 0, the secondTCI codepoint with TCI state ID1,1 and TCI state ID1,2 may be mapped tothe codepoint value 1 and so on. The TCI state IDi,2 may be optionalbased on the indication of the Ci field. The maximum number of activatedTCI codepoint may be 8 and the maximum number of TCI states mapped to aTCI codepoint may be 2. The plurality of fields may comprise a R fieldindicating a Reserved bit, set to “0”.

In an example, a MAC entity may be configured by RRC with a DRXfunctionality that may control the UE's PDCCH monitoring activity forthe MAC entity's C-RNTI, CI-RNTI, CS-RNTI, INT-RNTI, SFI-RNTI,SP-CSI-RNTI, TPC-PUCCH-RNTI, TPC-PUSCH-RNTI, and TPC-SRS-RNTI. When inRRC_CONNECTED, if DRX is configured, for the activated Serving Cells,the MAC entity may monitor the PDCCH discontinuously using the DRXoperation.

RRC may control DRX operation by configuring a plurality of parameters.The plurality of parameters may comprise a drx-onDurationTimer parameterindicating the duration at the beginning of a DRX Cycle; adrx-SlotOffset parameter indicating the delay before starting thedrx-onDurationTimer; a drx-InactivityTimer parameter the duration afterthe PDCCH occasion in which a PDCCH indicates a new UL or DLtransmission for the MAC entity; a drx-RetransmissionTimerDL parameter(per DL HARQ process except for the broadcast process) may indicate themaximum duration until a DL retransmission is received; adrx-RetransmissionTimerUL (per UL HARQ process): the maximum durationuntil a grant for UL retransmission is received; adrx-LongCycleStartOffset parameter indicating the Long DRX cycle anddrx-StartOffset which defines the subframe where the Long and Short DRXCycle starts; a drx-ShortCycle parameter indicating a Short DRX cycle; adrx-ShortCycleTimer parameter indicating the duration the UE may followthe Short DRX cycle; a drx-HARQ-RTT-TimerDL parameter (per DL HARQprocess except for the broadcast process) indicating the minimumduration before a DL assignment for HARQ retransmission is expected bythe MAC entity; a drx-HARQ-RTT-TimerUL parameter (per UL HARQ process)indicating the minimum duration before a UL HARQ retransmission grant isexpected by the MAC entity; a ps-Wakeup parameter indicating theconfiguration to start associated drx-onDurationTimer in case DCP ismonitored but not detected; a ps-Periodic_CSI_Transmit parameterindicating the configuration to report periodic CSI during the timeduration indicated by drx-onDurationTimer in case DCP is configured butassociated drx-onDurationTimer is not started; and aps-TransmitPeriodicL1-RSRP parameter indicating the configuration totransmit periodic L1-RSRP report(s) during the time duration indicatedby drx-onDurationTimer in case DCP is configured but associateddrx-onDurationTimer is not started.

In an example, when a DRX cycle is configured, the Active Time mayinclude the time while: drx-onDurationTimer or drx-InactivityTimer ordrx-RetransmissionTimerDL or drx-RetransmissionTimerUL orra-ContentionResolutionTimer is running; or a Scheduling Request is senton PUCCH and is pending; or a PDCCH indicating a new transmissionaddressed to the C-RNTI of the MAC entity has not been received aftersuccessful reception of a Random Access Response for the Random AccessPreamble not selected by the MAC entity among the contention-basedRandom Access Preamble.

In an example, when DRX is configured, if a MAC PDU is received in aconfigured downlink assignment, the MAC entity may: start thedrx-HARQ-RTT-TimerDL for the corresponding HARQ process in the firstsymbol after the end of the corresponding transmission carrying the DLHARQ feedback; and stop the drx-RetransmissionTimerDL for thecorresponding HARQ process.

In an example, when DRX is configured, if a MAC PDU is transmitted in aconfigured uplink grant the MAC entity may: start thedrx-HARQ-RTT-TimerUL for the corresponding HARQ process in the firstsymbol after the end of the first repetition of the corresponding PUSCHtransmission; and stop the drx-RetransmissionTimerUL for thecorresponding HARQ process.

In an example, when DRX is configured, if a drx-HARQ-RTT-TimerDLexpires, if the data of the corresponding HARQ process was notsuccessfully decoded, the MAC entity may start thedrx-RetransmissionTimerDL for the corresponding HARQ process in thefirst symbol after the expiry of drx-HARQ-RTT-TimerDL.

In an example, when DRX is configured, if a drx-HARQ-RTT-TimerULexpires, the MAC entity may start the drx-RetransmissionTimerUL for thecorresponding HARQ process in the first symbol after the expiry ofdrx-HARQ-RTT-TimerUL.

In an example, when DRX is configured, if a DRX Command MAC CE or a LongDRX Command MAC CE is received, the MAC entity may: stopdrx-onDurationTimer; and stop drx-InactivityTimer.

In an example, when DRX is configured, if drx-InactivityTimer expires ora DRX Command MAC CE is received, if the Short DRX cycle is configured,the MAC entity may: start or restart drx-ShortCycleTimer in the firstsymbol after the expiry of drx-InactivityTimer or in the first symbolafter the end of DRX Command MAC CE reception; and use the Short DRXCycle.

In an example, when DRX is configured, if drx-InactivityTimer expires ora DRX Command MAC CE is received, if the Short DRX cycle is notconfigured, the MAC entity may use the Long DRX cycle.

In an example, when DRX is configured, if drx-ShortCycleTimer expires,the MAC entity may use the Long DRX cycle.

In an example, when DRX is configured, if a Long DRX Command MAC CE isreceived, the MAC entity may: stop drx-ShortCycleTimer; and use the LongDRX cycle.

In an example, when DRX is configured, if the Short DRX Cycle is used,and [(SFN×10)+subframe number] modulo (drx-ShortCycle)=(drx-StartOffset)modulo (drx-ShortCycle), the MAC entity may start drx-onDurationTimerafter drx-SlotOffset from the beginning of the subframe.

In an example, when DRX is configured, if the Long DRX Cycle is used,and [(SFN×10)+subframe number] modulo (drx-LongCycle)=drx-StartOffset,if DCP is configured for the active DL BWP, if DCP indication associatedwith the current DRX Cycle received from lower layer indicated to startdrx-onDurationTimer; or if DCP occasion(s) in time domain, associatedwith the current DRX Cycle occurred in Active Time consideringgrants/assignments/DRX Command MAC CE/Long DRX Command MAC CE receivedand Scheduling Request sent until 4 ms prior to start of the last DCPoccasion, or within BWP switching interruption length, or during ameasurement gap; or if ps-Wakeup is configured with value true and DCPindication associated with the current DRX Cycle has not been receivedfrom lower layers: the MAC entity may start drx-onDurationTimer afterdrx-SlotOffset from the beginning of the subframe.

In an example, when DRX is configured, if the Long DRX Cycle is used,and [(SFN×10)+subframe number] modulo (drx-LongCycle)=drx-StartOffset,if DCP is not configured for the active DL BWP, the MAC entity may startdrx-onDurationTimer after drx-SlotOffset from the beginning of thesubframe.

In an example, when DRX is configured, if the MAC entity is in ActiveTime, the MAC entity may monitor the PDCCH. If the PDCCH indicates a DLtransmission, the MAC entity may start the drx-HARQ-RTT-TimerDL for thecorresponding HARQ process in the first symbol after the end of thecorresponding transmission carrying the DL HARQ feedback, regardless ofLBT failure indication from lower layers. The MAC entity may stop thedrx-RetransmissionTimerDL for the corresponding HARQ process. If thePDSCH-to-HARQ_feedback timing indicate a non-numerical k1 value, the MACentity may start the drx-RetransmissionTimerDL in the first symbol afterthe PDSCH transmission for the corresponding HARQ process.

In an example, when DRX is configured, if the MAC entity is in ActiveTime, the MAC entity may monitor the PDCCH. If the PDCCH indicates a ULtransmission, the MAC entity may start the drx-HARQ-RTT-TimerUL for thecorresponding HARQ process in the first symbol after the end of thefirst repetition of the corresponding PUSCH transmission, regardless ofLBT failure indication from lower layers; and stop thedrx-RetransmissionTimerUL for the corresponding HARQ process.

In an example, when DRX is configured, if the MAC entity is in ActiveTime, the MAC entity may monitor the PDCCH. If the PDCCH indicates a newtransmission (e.g., DL or UL), the MAC entity may start or restartdrx-InactivityTimer in the first symbol after the end of the PDCCHreception.

In an example, when DRX is configured, if DCP is configured for theactive DL BWP; and if the current symbol n occurs withindrx-onDurationTimer duration; and if drx-onDurationTimer associated withthe current DRX cycle is not started; and if the MAC entity would not bein Active Time considering grants/assignments/DRX Command MAC CE/LongDRX Command MAC CE received and Scheduling Request sent until 4 ms priorto symbol n when evaluating all DRX Active Time conditions, the MACentity may: not transmit periodic SRS and semi-persistent SRS; notreport semi-persistent CSI configured on PUSCH; ifps-Periodic_CSI_Transmit is not configured with value true: the MACentity may not report periodic CSI on PUCCH. Otherwise, ifps-TransmitPeriodicL1-RSRP is configured with value true, the MAC entitymay not report periodic CSI on PUCCH, except L1-RSRP report(s).

In an example, regardless of whether the MAC entity is monitoring PDCCHor not, the MAC entity may transmit HARQ feedback, aperiodic CSI onPUSCH, and aperiodic SRS when such is expected.

In an example, the MAC entity may not need to monitor the PDCCH if it isnot a complete PDCCH occasion (e.g. the Active Time starts or ends inthe middle of a PDCCH occasion).

In an example, if the MAC entity is configured with one or more SCells,the network may activate and deactivate the configured SCells. Uponconfiguration of an SCell, the SCell may be deactivated unless theparameter sCellState is set to activated for the SCell withinRRCReconfiguration message.

In an example, the configured SCell(s) may be activated and deactivatedby: receiving the SCell Activation/Deactivation MAC CE; configuringsCellDeactivationTimer timer per configured SCell (except the SCellconfigured with PUCCH, if any): the associated SCell may be deactivatedupon its expiry.

In an example, for each configured SCell, else if an SCellActivation/Deactivation MAC CE is received deactivating the SCell; or ifthe sCellDeactivationTimer associated with the activated SCell expires,the MAC entity may deactivate the SCell according to a timing; stop thesCellDeactivationTimer associated with the SCell; stop thebwp-InactivityTimer associated with the SCell; deactivate active BWPassociated with the SCell; clear any configured downlink assignment andany configured uplink grant Type 2 associated with the SCellrespectively; clear any PUSCH resource for semi-persistent CSI reportingassociated with the SCell; suspend any configured uplink grant Type 1associated with the SCell; cancel the triggered BFRs for this ServingCell; flush HARQ buffers associated with the SCell; and cancel, if any,triggered consistent LBT failure for the SCell.

In an example, for each configured SCell, if PDCCH on the activatedSCell indicates an uplink grant or downlink assignment; or if PDCCH onthe Serving Cell scheduling the activated SCell indicates an uplinkgrant or a downlink assignment for the activated SCell; or if a MAC PDUis transmitted in a configured uplink grant or received in a configureddownlink assignment: the MAC entity may restart thesCellDeactivationTimer associated with the SCell.

In an example, for each configured SCell, if the SCell is deactivated:the MAC entity may not transmit SRS on the SCell; may not report CSI forthe SCell; may not transmit on UL-SCH on the SCell; may not transmit onRACH on the SCell; may not monitor the PDCCH on the SCell; may notmonitor the PDCCH for the SCell; and may not transmit PUCCH on theSCell.

In an example, HARQ feedback for the MAC PDU containing SCellActivation/Deactivation MAC CE may not be impacted by PCell, PSCell andPUCCH SCell interruptions due to SCell activation/deactivation.

In an example, when SCell is deactivated, the ongoing Random Accessprocedure on the SCell, if any, may be aborted.

The complexity reduction (e.g., bandwidth reduction) for certain typesof wireless devices (e.g., reduced capability wireless devices) mayresult in increased errors and inefficiency in downlink receptions, forexample downlink control channel reception, of these wireless devicetypes. For example, scheduling efficiency and reliability may beimpacted as a result of this complexity reduction. Existing solutions,for example increasing the duration of CORESETs or PDCCH repetition orCORESET resource bundling, introduce new problems for control channelreception. There is a need to enhance the control information receptionprocesses for these types of wireless devices. Example embodimentsenhance the control information reception processes for these types ofwireless devices.

In an example, a wireless device may receive one or more messagescomprising configuration parameters. The one or more messages maycomprise one or more RRC messages. The wireless device may receive theone or more messages in response to transmitting one or more capabilitymessages comprising/indicating capability parameters of the wirelessdevice. In an example, the capability parameters may indicate a type ofthe wireless device. In an example, the wireless device may indicate atype of the wireless device based on the capability parameters and/orbased on a different procedure (for example, based on random accessresources/occasions used for a random access process for example duringan attach procedure). An example of the type of the wireless device maybe a reduced capability type.

The one or more messages may comprise configuration parameters of a oneor more cells. A cell of the one or more cells may have one of aplurality of types. In an example, the plurality of types ma compriselicensed cell and unlicensed cell. In an example, the unlicensed cellmay be a licensed assisted access (LAA) cell. An LAA cell may beconfigured for carrier aggregation with at least one licensed cell. Inan example, the one or more cells may be grouped into a primary cellgroup and a secondary cell group. The wireless device may communicatewith a first base station (e.g., a master base station) via the primarycell group and may communicate with a second base station (e.g., asecondary base station) via the secondary cell group. The cells in acell group may comprise a primary cell. The cells in a cell group maycomprise one or more secondary cells.

The one or more messages may comprise configuration parameters of one ormore bandwidth parts for one or more first cells in the one or morecells. The configuration parameters of the one or more bandwidth partsmay comprise downlink control channel configuration parameters. Thedownlink control channel configuration parameters on a bandwidth part ofa cell may comprise configuration parameters of one or more controlresource sets. The downlink control channel configuration parameters maycomprise configuration parameters of one or more search spaces. A searchspace may be associated with a control resource set. The configurationparameters of a search space may comprise an identifier of itsassociated control resource set.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set (CORESET) and a secondCORESET. The first CORESET may be associated with a first CORESET ID andthe second CORESET may be associated with a second CORESET ID. In anexample, the configuration parameters may comprise a firstControlResourceSetId IE indicating the first CORESET ID and a secondControlResourceSetId IE indicating the second CORESET ID. A CORESET IDmay indicate an identity, used to identify a control resource set withina serving cell. The ID space may be used across the BWPs of a ServingCell. The CORESET configuration parameters may comprise a Durationparameter indicating Contiguous time duration of the CORESET in numberof symbols. The CORESET configuration parameters may further indicatefrequency domain resources of the CORESET. The CORESET configurationparameters may further comprise a CORESET pool/group index/identifierindicating an index of the CORESET pool/group for the CORESET. Thewireless device may receive configuration parameters of a plurality ofCORESETs grouped into a plurality of CORESET groups/pools and a CORESETpool/group index/identifier may indicate the CORESET pool/group to whicha CORESET belongs to.

In an example embodiment, the configuration parameters of a CORESET mayindicate one or more transmission configuration indicator (TCI) statesassociated with the CORESET. The configuration parameters of the CORESETmay indicate identifiers of the one or more TCI states associated withthe CORESET. A number of TCI states associated with the CORESET may beless than or equal to a maximum number of TCI states, for exampleconfigured using a maxNrofTCI-StatesPDCCH parameter.

The configuration parameters of a TCI state may indicate one or two DLreference signals with a corresponding quasi-colocation (QCL) type. Theconfiguration parameters of the TCI state may comprise a TCI stateidentifier associated with the TCI state. The configuration parametersof the TCI state may comprise a QCL type IE indicating a serving cellidentifier, a BWP identifier, a reference signal (e.g., a choice betweenCSI-RS and SSB), and may indicate what is a type of the QCL for the TCIstate (e.g., type A, type B, type C, type D QCL type).

In an example embodiment, a wireless device may receive a downlinkcontrol information via a plurality of CORESETs. The wireless device mayreceive the downlink control information via first radio resources ofthe first CORESET and second radio resources of the second CORESET. Inan example, the first CORESET may be in a first slot (e.g., in one ormore first symbols of the first slot) and the second CORESET may be in asecond slot (e.g., in one or more second symbols of the second slot). Inan example, the first CORESET and the second CORESET may be in the sameslot. In an example, the wireless device may receive the downlinkcontrol information by receiving repetitions of the downlink controlinformation via the first CORESET and the second CORESET. In an example,first radio resources of the first CORESET and the second radioresources of the second CORESET may be bundled for transmission of thedownlink control information. The downlink control information may bemapped to the bundled resources (e.g., the first radio resources and thesecond radio resources).

In an example embodiment, a wireless device may receive a downlinkcontrol information via a plurality of search spaces. The wirelessdevice may receive the downlink control information via first radioresources of a first search space (e.g., first radio resources of afirst CORESET associated with the first search space) and second radioresources of a second search space (e.g., second radio resources of asecond CORESET associated with the second search space). In an example,the first CORESET may be in a first slot (e.g., in one or more firstsymbols of the first slot) and the second CORESET may be in a secondslot (e.g., in one or more second symbols of the second slot). In anexample, the first CORESET and the second CORESET may be in the sameslot. In an example, the wireless device may receive the downlinkcontrol information by receiving repetitions of the downlink controlinformation via the first search space and the second search space. Inan example, first radio resources of the first search space (e.g., firstradio resources of a first CORESET associated with the first searchspace) and the second radio resources of the second search space (e.g.,second radio resources of a second CORESET associated with the secondsearch space) may be bundled for transmission of the downlink controlinformation. The downlink control information may be mapped to thebundled resources (e.g., the first radio resources and the second radioresources).

In an example embodiment as shown in FIG. 24, the wireless device mayreceive, from one or more base stations, the downlink controlinformation via first radio resources of the first CORESET and secondradio resources of the second CORESET, wherein the first controlresource set identifier and the second control resource set identifierhave the same value. The wireless device may receive the downlinkcontrol information via first radio resources of the first CORESET andsecond radio resources of the second CORESET based on the first controlresource set identifier and the second control resource set identifierhaving the same value. The wireless device may receive the downlinkcontrol information via first radio resources of the first CORESET andsecond radio resources of the second CORESET wherein the wireless deviceexpects that the first CORESET identifier and the second CORESETidentifier have the same value.

In an example embodiment, the wireless device may receive, from one ormore base stations, the downlink control information via first radioresources of the first search space (e.g., first radio resources of afirst CORESET associated with the first search space) and second radioresources of the second search space (e.g., second radio resources of asecond CORESET associated with the second search space), wherein a firstsearch space identifier of the first search space and a second searchspace identifier of the second search space have the same value. Thewireless device may receive the downlink control information via firstradio resources of the first search space and second radio resources ofthe second search space based on the first search space identifier andthe second search space identifier having the same value. The wirelessdevice may receive the downlink control information via first radioresources of the first search space and second radio resources of thesecond search space wherein the wireless device expects that the firstsearch space identifier and the second search space identifier have thesame value.

In an example embodiment as shown in FIG. 25, the wireless device mayreceive, from one or more base stations, the downlink controlinformation via first radio resources of the first CORESET and secondradio resources of the second CORESET, wherein a first control resourceset pool/group identifier associated with the first CORESET and a secondcontrol resource set pool/group identifier associated with the secondCORESET have the same value. The wireless device may receive thedownlink control information via first radio resources of the firstCORESET and second radio resources of the second CORESET based on thefirst control resource set pool/group identifier associated with thefirst CORESET and the second control resource set pool/group identifierassociated with the second CORESET having the same value. The wirelessdevice may receive the downlink control information via first radioresources of the first CORESET and second radio resources of the secondCORESET wherein the wireless device expects that the first controlresource set pool/group identifier associated with the first CORESET andthe second control resource set pool/group identifier associated withthe second CORESET have the same value.

In an example embodiment, the wireless device may receive, from one ormore base stations, the downlink control information via first radioresources of the first search space (e.g., first radio resources of afirst CORESET associated with the first search space) and second radioresources of the second search space (e.g., second radio resources of asecond CORESET associated with the second search space), wherein a firstsearch space group/pool identifier associated with the first searchspace and a second search space group/pool identifier associated withthe second search space have the same value. The wireless device mayreceive the downlink control information via first radio resources ofthe first search space and second radio resources of the second searchspace based on a first search space group/pool identifier associatedwith the first search space and a second search space group/poolidentifier associated with the second search space having the samevalue. The wireless device may receive the downlink control informationvia first radio resources of the first search space and second radioresources of the second search space wherein the wireless device expectsthat a first search space group/pool identifier associated with thefirst search space and a second search space group/pool identifierassociated with the second search space have the same value.

In an example embodiment as shown in FIG. 26, a wireless device mayreceive, from one or more base stations, a first signal via first radioresources of the first control resource set and a second signal viasecond radio resources of the second control resource set. The firstsignal and the second signal may be associated with a downlink controlinformation. In an example, the first signal and the second signal maybe repetitions of the downlink control information in the first controlresource set and the second control resource set. The first signal andthe second signal may be received via repetitions of a downlink controlchannel carrying the downlink control information in the first controlresource set and the second control resource set. The downlink controlinformation may be mapped to the first radio resources and the downlinkcontrol information may be mapped to the second radio resources. In anexample, the firs radio resources of the first control resource set andthe second radio resources of the second control resource set may bebundled for reception of the downlink control information. The downlinkcontrol information may be mapped to a plurality of resources (e.g.,bundled resources) comprising the first radio resources and the secondradio resources. A first CORESET ID of the first CORESET and a secondCORESET ID of the second CORESET may have different values. Based on thefirst CORESET ID and the second CORESET ID having different value, thewireless device may ignore the first signal and/or the second signal. Inan example, based on the CORESET ID and the second CORESET ID havingdifferent value, the wireless device may ignore both the first signaland the second signal. In an example, based on the first CORESET ID andthe second CORESET ID having different value, the wireless device mayignore one of the first signal and the signal and determine/decode thedownlink control information based on the other signal. For example, thewireless device may ignore the second signal and determine/decode thedownlink control information based on the first signal. For example, thewireless device may ignore the first signal and determine/decode thedownlink control information based on the second signal.

In an example embodiment, a wireless device may receive, from one ormore base stations, a first signal via first radio resources of thefirst search space (e.g., first radio resources of a first CORESETassociated with the first search space) and a second signal via secondradio resources of the second search space (e.g., second radio resourcesof a second CORESET associated with the second search space). The firstsignal and the second signal may be associated with a downlink controlinformation. In an example, the first signal and the second signal maybe repetitions of the downlink control information in the first searchspace and the second search space. The first signal and the secondsignal may be received via repetitions of a downlink control channelcarrying the downlink control information in the first search space andthe second search space. The downlink control information may be mappedto the first radio resources and the downlink control information may bemapped to the second radio resources. In an example, the firs radioresources of the first search space and the second radio resources ofthe second search space may be bundled for reception of the downlinkcontrol information. The downlink control information may be mapped to aplurality of resources (e.g., bundled resources) comprising the firstradio resources and the second radio resources. A first search space IDof the first search space and a second search space ID of the secondsearch space may have different values. Based on the first search spaceID and the second search space ID having different value, the wirelessdevice may ignore the first signal and/or the second signal. In anexample, based on the first search space ID and the second search spaceID having different value, the wireless device may ignore both the firstsignal and the second signal. In an example, based on the first searchspace ID and the second search space ID having different value, thewireless device may ignore one of the first signal and the second signaland determine/decode the downlink control information based on the othersignal. For example, the wireless device may ignore the second signaland determine/decode the downlink control information based on the firstsignal. For example, the wireless device may ignore the first signal anddetermine/decode the downlink control information based on the secondsignal.

In an example embodiment as shown in FIG. 27, a wireless device mayreceive, from one or more base stations, a first signal via first radioresources of the first control resource set and a second signal viasecond radio resources of the second control resource set. The firstsignal and the second signal may be associated with a downlink controlinformation. In an example, the first signal and the second signal maybe repetitions of the downlink control information in the first controlresource set and the second control resource set. The first signal andthe second signal may be received via repetitions of a downlink controlchannel carrying the downlink control information in the first controlresource set and the second control resource set. The downlink controlinformation may be mapped to the first radio resources and the downlinkcontrol information may be mapped to the second radio resources. In anexample, the firs radio resources of the first control resource set andthe second radio resources of the second control resource set may bebundled for reception of the downlink control information. The downlinkcontrol information may be mapped to a plurality of resources (e.g.,bundled resources) comprising the first radio resources and the secondradio resources. A first CORESET pool/group ID associated with the firstCORESET and a second CORESET pool/group ID associated with the secondCORESET may have different values. Based on the first CORESET pool/groupID and the second CORESET pool/group ID having different values, thewireless device may ignore the first signal and/or the second signal. Inan example, based on the first CORESET pool/group ID and the secondCORESET pool/group ID having different values, the wireless device mayignore both the first signal and the second signal. In an example, basedon the first CORESET pool/group ID and the second CORESET pool/group IDhaving different values, the wireless device may ignore one of the firstsignal and the signal and determine/decode the downlink controlinformation based on the other signal. For example, the wireless devicemay ignore the second signal and determine/decode the downlink controlinformation based on the first signal. For example, the wireless devicemay ignore the first signal and determine/decode the downlink controlinformation based on the second signal.

In an example embodiment, a wireless device may receive, from one ormore base stations, a first signal via first radio resources of thefirst search space (e.g., first radio resources of a first CORESETassociated with the first search space) and a second signal via secondradio resources of the second search space (e.g., second radio resourcesof a second CORESET associated with the second search space). The firstsignal and the second signal may be associated with a downlink controlinformation. In an example, the first signal and the second signal maybe repetitions of the downlink control information in the first searchspace and the second search space. The first signal and the secondsignal may be received via repetitions of a downlink control channelcarrying the downlink control information in the first search space andthe second search space. The downlink control information may be mappedto the first radio resources and the downlink control information may bemapped to the second radio resources. In an example, the firs radioresources of the first search space and the second radio resources ofthe second search space may be bundled for reception of the downlinkcontrol information. The downlink control information may be mapped to aplurality of resources (e.g., bundled resources) comprising the firstradio resources and the second radio resources. A first search spacepool/group ID associated with the first search space and a second searchspace pool/group ID associated with the second search space may havedifferent values. Based on the first search space pool/group ID and thesecond search space pool/group ID having different values, the wirelessdevice may ignore the first signal and/or the second signal. In anexample, based on the first search space pool/group ID and the secondsearch space pool/group ID having different values, the wireless devicemay ignore both the first signal and the second signal. In an example,based on the first search space pool/group ID and the second searchspace pool/group ID having different values, the wireless device mayignore one of the first signal and the signal and determine/decode thedownlink control information based on the other signal. For example, thewireless device may ignore the second signal and determine/decode thedownlink control information based on the first signal. For example, thewireless device may ignore the first signal and determine/decode thedownlink control information based on the second signal.

In an example embodiment, a wireless device may receive, from a basestation, configuration parameters of a first CORESET and a secondCORESET. The first CORESET may be associated with a first TCI state andthe second CORESET may be associated with a second TCI state. Forexample, the wireless device may receive one or more commands (e.g., oneor more MAC CEs) indicating that the first CORESET is associated withthe first TCI state and the second CORESET is associated with the secondTCI state. For example, the wireless device may determine that the firstCORESET is associated with the first TCI state and the second CORESET isassociated with the second TCI state based on the configurationparameters of the first CORESET and the configuration parameters of thesecond CORESET and based on one or more commands (e.g., one or more MACCEs).

In an example embodiment as shown in FIG. 28, the wireless device mayreceive, from one or more base stations, the downlink controlinformation via first radio resources of the first CORESET and secondradio resources of the second CORESET, wherein the first TCI state andthe second TCI state are the same (e.g., the first TCI state identifierand the second TCI state identifier have the same value). The wirelessdevice may receive the downlink control information via first radioresources of the first CORESET and second radio resources of the secondCORESET based on the first TCI state and the second TCI state being thesame (e.g., the first TCI state identifier and the second TCI stateidentifier having the same value). The wireless device may receive thedownlink control information via first radio resources of the firstCORESET and second radio resources of the second CORESET wherein thewireless device expects that the first TCI state and the second TCIstate to be the same (e.g., the first TCI state identifier and thesecond TCI state identifier having the same value).

In an example embodiment as shown in FIG. 29, the wireless device mayreceive, from one or more base stations, the downlink controlinformation via first radio resources of the first CORESET and secondradio resources of the second CORESET, wherein the first TCI state andthe second TCI state indicate the same quasi-colocation relation (e.g.,the first TCI state and the second TCI state indicate the same referencesignal and/or QCL type). The wireless device may receive the downlinkcontrol information via first radio resources of the first CORESET andsecond radio resources of the second CORESET based on the first TCIstate and the second TCI state being the same (e.g., the first TCI stateand the second TCI state indicating the same reference signal and/or QCLtype). The wireless device may receive the downlink control informationvia first radio resources of the first CORESET and second radioresources of the second CORESET wherein the wireless device expects thatthe first TCI state and the second TCI state to be the same (e.g., thefirst TCI state and the second TCI state to indicate the same referencesignal and/or QCL type).

In an example embodiment, to receive a downlink control information, thewireless device may receive a first signal via first radio resources ofa first CORESET and a second signal via second radio resources of asecond CORESET. The first signal and the second signal may be associatedwith the downlink control information. In an example, the first signaland the second signal may be repetitions of the downlink controlinformation or a downlink control channel carrying the downlink controlinformation. In an example, the downlink control information may bemapped to the first radio resource of the first CORESET and the secondradio resource of the second CORESET (e.g., the first radio resourcesand the second radio resources may be bundled). The first TCI state andthe second TCI state may be different. For example, one or moreparameters of first TCI state and the second TCI state may be different.For example, a first TCI state identifier associated with the first TCIstate and a second TCI state identifier associated with the second TCIstate may have different values. For example, the one or more parametersmay comprise one or more of a QCL type, a reference signal associatedwith the TCI state, a TCI state ID, etc.

In an example embodiment, based on the first TCI state being differentfrom the second TCI state and/or based on the first TCI state identifierand the second TCI state identifier having different values and/or basedon the one or more parameters of the first TCI state and the second TCIstate being different, the wireless device may determine/decode thedownlink control information based on one of the first TCI state and thesecond TCI state.

In an example embodiment as shown in FIG. 30, based on the first TCIstate being different from the second TCI state and/or based on thefirst TCI state identifier and the second TCI state identifier havingdifferent values and/or based on the one or more parameters of the firstTCI state and the second TCI state being different, the wireless devicemay determine/decode the downlink control information based on one ofthe first signal and the second signal. For example, the wireless devicemay determine/decode the downlink control channel based on the firstsignal and/or the wireless device may ignore the second signal. Forexample, the wireless device may determine/decode the downlink controlchannel based on the second signal and/or the wireless device may ignorethe first signal.

In an example embodiment as shown in FIG. 31, based on the first TCIstate being different from the second TCI state and/or based on thefirst TCI state identifier and the second TCI state identifier havingdifferent values and/or based on the one or more parameters of the firstTCI state and the second TCI state being different, the wireless devicemay ignore the first signal and/or the second signal. In an example, thewireless device may ignore both the first signal and the second signal.

In an example embodiment as shown in FIG. 32, the wireless device maydetermine the wireless device may determine/decode the downlink controlinformation. The downlink control information may comprise schedulinginformation, for example an uplink transmission or downlink reception ofa transport block. In an example, the DCI may not comprise a TCI stateID. Based on the first TCI state being different from the second TCIstate and/or based on the first TCI state identifier and the second TCIstate identifier having different values and/or based on the one or moreparameters of the first TCI state and the second TCI state beingdifferent and/or based on the DCI not indicating a TCI state ID, thewireless device may ignore scheduling information.

In an example embodiment as shown in FIG. 33, based on a first QCLtype/information/relation indicated by the first TCI state beingdifferent from a second QCL type/information/relation indicated by thesecond TCI state, the wireless device may ignore the first signal and/orthe second signal. For example, based on a first reference signalindicated by the first QCL type/information/relation and a secondreference signal indicated by the second QCL type/information/relation,the wireless device may ignore the first signal and/or the secondsignal. For example, based on a first QCL type (e.g., type A, type B,type C or type D) indicated by the first QCL type/information/relationand a second QCL type (e.g., type A, type B, type C or type D) indicatedby the second QCL type/information/relation, the wireless device mayignore the first signal and/or the second signal. In an example, thewireless device may ignore both the first signal and the second signal.

In an example, a wireless device may receive one or morecommands/control elements (e.g., one or more MAC CEs) indicating a firstTCI state (e.g., a first TCI state identifier) for reception of controlinformation (e.g., downlink control information) via a first CORESET anda second TCI state (e.g., a second TCI state identifier) for receptionof control information (e.g., downlink control information) via a secondCORESET. The first TCI state may be different from the second TCI state.For example, the first TCI state identifier may be different from thesecond TCI state identifier. The first CORESET and the second CORESETmay be for reception of a downlink control information (e.g., may beconfigured to receive a downlink control information). In an example,the first CORESET and the second CORESET may be for repetition of adownlink control information (e.g., may be configured to receiverepetitions of a downlink control information). In an example, firstradio resources of the first CORESET and second radio resources of thesecond CORESET may be bundled (e.g., may be configured for bundlingradio resources) and the downlink control information may be mapped tothe bundled resources.

In an example embodiment, the wireless device may ignore the one or morecommands/control elements based on the first CORESET and the secondCORESET being for reception of a downlink control information (e.g.,being configured to receive a downlink control information based on DCIrepetition or resource bundling) and based on the first TCI state beingdifferent from the second TCI state.

In an example, the wireless device may receive a first signal via firstradio resources of the first CORESET and a second signal via secondradio resources of the second CORESET. In an example, the first signaland the second signal may be for transmission of repetitions of adownlink control information. In an example, the downlink controlinformation may be mapped to the first radio resources of the firstsignal and the second radio resources of the second signal wherein thedownlink control information is mapped to the first radio resources andthe second radio resources (e.g., bundled resources).

In an example embodiment as shown in FIG. 34, the wireless device mayignore the one or more commands/control elements based on the firstCORESET and the second CORESET being for reception of a downlink controlinformation (e.g., being configured to receive a downlink controlinformation based on DCI repetition or resource bundling) and based onthe first TCI state being different from the second TCI state.

In an example embodiment as shown in FIG. 35, the wireless device mayignore the first signal and/or the second signal based on the firstCORESET and the second CORESET being for reception of a downlink controlinformation (e.g., being configured to receive a downlink controlinformation based on DCI repetition or resource bundling) and based onthe first TCI state being different from the second TCI state. Forexample, the wireless device may ignore the second signal and/or maydetermine the downlink control information based on the first signal.For example, the wireless device may ignore both of the first signal andthe second signal.

In an example embodiment, a wireless device may receive firstconfiguration parameters of a first CORESET and second configurationparameters of a second CORESET. The first configuration parameters maycomprise a first CORESET ID and the second configuration parameters maycomprise a second CORESET ID. The wireless device may receive, from abase station, semi-static signaling (e.g., one or more RRC configurationparameters) and/or dynamic signaling (e.g., a MAC CE or a DCI),indicating that the first CORESET and the second CORESET are used forreception of a downlink control information. For example, thesemi-static signaling (e.g., the one or more RRC configurationparameters) and/or the dynamic signaling (e.g., MAC CE/DCI) may indicatethat the first CORESET and the second CORESET are associated forreception of a downlink control information. In an example, thesemi-static signaling (e.g., the one or more RRC configurationparameters) and/or the dynamic signaling (e.g., MAC CE/DCI) may indicatethat the first CORESET and the second CORESET are for reception ofrepetitions of the downlink control information. In an example, thesemi-static signaling (e.g., the one or more RRC configurationparameters) and/or the dynamic signaling (e.g., MAC CE/DCI) may indicatethat first radio resources of the first CORESET and second radioresources of the second CORESET are associated and are for bundlingresources and mapping the downlink control information to the bundledresources. The wireless device may receive a first signal based on firstradio resources of the first CORESET and the wireless device may receivea second signal based on second radio resources of the second CORESET.The wireless device may determine/decode the downlink controlinformation based on the first signal and the second signal.

In an example embodiment, a wireless device may receive a first signalbased on a first TCI state. For example, the wireless device may receivethe first signal based on first radio resources of a CORESET (e.g., afirst CORESET) wherein the CORESET is associated with the first TCIstate. The wireless device may determine a second TCI state based on thefirst TCI state. For example, the first TCI state may be associated witha first TCI state identifier and the second TCI state may be associatedwith a second TCI state identifier and the wireless device may determinethe second TCI state identifier based on the first TCI state identifier.The wireless device may receive a second signal based on the second TCIstate. For example, the wireless device may receive the second signalbased on second radio resources of a CORESET (e.g., a second CORESET)associated with the second TCI state.

In an example embodiment, a wireless device may receive a first signalbased on a first CORESET. For example, the wireless device may receivethe first signal via first radio resources of a first CORESET. Thewireless device may determine a second CORESET based on the firstCORESET. For example, the first CORESET may be associated with a firstCORESET identifier and the second CORESET may be associated with asecond CORESET identifier and the wireless device may determine thesecond CORESET identifier based on the first CORESET identifier. Thewireless device may receive a second signal based on the second CORESET.For example, the wireless device may receive the second signal viasecond radio resources of a second CORESET.

The wireless device may determine a downlink control information basedon the first signal and the second signal. In an example, the firstsignal and the second signal may be associated with repetitions of thedownlink control information. In an example, the downlink controlinformation may be mapped to the first radio resources and the secondradio resources (e.g., bundled resources). The downlink controlinformation may comprise scheduling information for transmission orreception of a transport block. The wireless device may transmit orreceive a transport block based on the scheduling information.

In an example embodiment, a wireless device may receive configurationparameters of a plurality of bandwidth parts comprising a first BWP anda second BWP. The first BWP and the second BWP may be for the same cell.In an example, the first BWP may be for a first cell and the second BWPmay be for a second cell. In an example, the configuration parameters ofthe first BWP may comprise first downlink control informationconfiguration parameters comprising first CORESET configurationparameters. The configuration parameters of the second BWP may comprisesecond downlink control information configuration parameters comprisingsecond CORESET configuration parameters. In an example, theconfiguration parameters of the first BWP may comprise first downlinkcontrol information configuration parameters comprising first searchconfiguration parameters. The configuration parameters of the second BWPmay comprise second downlink control information configurationparameters comprising second search space configuration parameters.

The wireless device may receive a first signal based on the firstCORESET (e.g., via first radio resources of the first CORESET). Thewireless device may receive a second signal based on the second CORESET(e.g., via second radio resources of the second CORESET). In an example,the wireless device may receive the first signal based on the firstsearch space (e.g., via first radio resources of the first CORESETassociated with the first search space). The wireless device may receivea second signal based on the second search space (e.g., via second radioresources of the second CORESET associated with the second searchspace). The first signal and the second may be associated with adownlink control information. In an example, the first signal and thesecond signal may be for repetitions of the downlink controlinformation. In an example, the downlink control information may bemapped to first radio resources of the first signal and second radioresources of the second signal (e.g. bundled resources). The wirelessdevice may determine/decode a downlink control information based on thefirst signal and the second signal.

In an example, a wireless device may receive configuration parameters ofa first CORESET associated with a first TCI state and a second CORESETassociated with a second TCI state. For example, the wireless device mayreceive one or more commands (e.g., one or more MAC CEs) indicatingassociation between the first TCI state and the first CORESET and theassociation between the second CORESET and the second TCI state. Thewireless device may determine that the first CORESET is associated withthe first TCI state and that the second CORESET is associated with thesecond TCI state based on the one or more commands and/or theconfiguration parameters. The first TCI state may be different from thesecond TCI state. The wireless device may receive a downlink controlinformation via the first radio resources of the first CORESET andsecond radio resources of the second CORESET. For example, the wirelessdevice may receive repetitions of the downlink control information viathe first radio resources and the second radio resources. For example,the first radio resources and the second radio resources may be bundledfor mapping the downlink control information to the bundled resources.The downlink control information may comprise scheduling information forreception of a transport block. The downlink control information may notindicate a TCI state for reception of a downlink transport block. Forexample, the downlink control information may not comprise a fieldindicating the TCI state.

In an example embodiment as shown in FIG. 36, the wireless device mayignore the downlink control information and/or the schedulinginformation based on the downlink control information not indicating aTCI state and based on the first TCI state being different from thesecond TCI state. The ignoring the downlink control information and/orthe scheduling information may further be based on a time offset betweenreception of the downlink control information and the downlink transportblock. For example, the wireless device may ignore the downlink controlinformation and/or the scheduling information based on the time offsetbeing larger than or equal to the threshold. The threshold may be basedon a wireless device capability. For example, the first radio resourcesmay comprise/span one or more first symbols and the second radioresources may comprise/span one or more second symbols. A time ofreception of the downlink control information may be based on the one ormore second symbols.

In an example embodiment as shown in FIG. 37, based on the downlinkcontrol information not indicating a TCI state, the wireless device maydetermine one of the first TCI state and the second TCI state as adetermined TCI state. The wireless may receive the downlink transportblock based on the determined TCI state and based on the schedulinginformation of the downlink control information. The determining one ofthe first TCI state and the second TCI state may further be based on atime offset between reception of the downlink control information andthe downlink transport block. For example, the wireless device maydetermine one of the first TCI state and the second TCI state based onthe time offset being larger than or equal to the threshold. Thethreshold may be based on a wireless device capability. For example, thefirst radio resources may comprise/span one or more first symbols andthe second radio resources may comprise/span one or more second symbols.A time of reception of the downlink control information may be based onthe one or more second symbols.

In an example embodiment, a wireless device may receive configurationparameters of first CORESET and a second CORESET. The wireless devicemay receive configuration parameters of a first search space and asecond search space. The wireless device may determine a downlinkcontrol information based on a first signal and a second signal. In anexample, the first signal and the second signal may be repetitions ofthe DCI. In an example, the DCI may be mapped to first resources of thefirst signal and second resources of the second signal (e.g., resourcebundling).

In an example embodiment as shown in FIG. 38, the wireless device mayreceive the first signal via the first radio resources. The wirelessdevice may determine second radio resources of the second signal basedon the first radio resources. The wireless device may receive one ormore configuration parameters wherein determining the second radioresources may be based on the one or more configuration parameters. Thewireless device may receive the second signal based on the second radioresources. In an example, the first resources and the second resourcesmay be associated with the same CORESET (e.g., CORESET ID). In anexample, the first resources and the second resources may be associatedwith different CORESETs (e.g., different CORESET IDs). The wirelessdevice may determine/decode the downlink control information based onthe first signal and the second signal. For example, the first signalmay be received via the first radio resources of a first CORESET. Thefirst search space may be associated with the first CORESET. Thewireless device may determine a second CORESET (e.g., a second CORESETID) based on the first CORESET (e.g., first CORESET ID). For example,the second CORESET ID may be the same as the first CORESET ID. Forexample, the second radio resources of the second CORESET may be thesame as the first radio resources of the first CORESET. The secondsearch space may be associated with the second CORESET. In an example,the wireless device may determine the second radio resources based ondetermining that the second signal may be received and/or is requiredfor determining/decoding the downlink control information.

In an example, the configuration parameters may comprise a parameterindicating an association between the first CORESET and the secondCORESET. The configuration parameters may comprise a parameterindicating an association between the first search space and the secondsearch space. The wireless device may determine the second radioresources based on the parameter.

In an example embodiment as shown in FIG. 39, the wireless device mayreceive, from a base station, configuration parameters of a plurality ofcontrol resource sets. The plurality of control resource sets maycomprise a first CORESET and a second CORESET. The first CORESET and thesecond CORESET may be for reception of control information. For example,the first CORESET and the second CORESET may be configured for a BWP ofa cell. The wireless device may receive configuration parameters of oneor more cells comprising the cell. The wireless device may receive afirst signal via the first CORESET (e.g., via radio resources of thefirst CORESET). In an example, the wireless device may determine (e.g.,based on a first ID of the first CORESET and/or based on one or moreconfiguration parameters) that a second signal is required fordetermining/decoding the downlink control information. The wirelessdevice may determine the second CORESET based on the first CORESET. Forexample, the wireless device may determine a second ID of the secondCORESET based on a first ID of the first CORESET. For example, thewireless device may determine the second CORESET based on the firstCORESET and one or more configuration parameters. The wireless receivemay receive the second signal via the second CORESET. The wirelessdevice may determine/decode the downlink control information based onthe first signal and the second signal.

In an example embodiment, the wireless device may receive, from a basestation, configuration parameters of a plurality of search spaces. Theplurality of search spaces may comprise a first search space and asecond search space. The first search space and the second search spacemay be for reception of control information. For example, the firstsearch space and the second search space may be configured for a BWP ofa cell. The wireless device may receive configuration parameters of oneor more cells comprising the cell. The wireless device may receive afirst signal based on the first search space (e.g., via radio resourcesof a first CORESET associated with the first search space). In anexample, the wireless device may determine (e.g., based on a first ID ofthe first search space and/or based on one or more configurationparameters) that a second signal is required for determining/decodingthe downlink control information. The wireless device may determine thesecond search space based on the first search space. For example, thewireless device may determine a second ID of the second search spacebased on a first ID of the first search space. For example, the wirelessdevice may determine the second search space based on the first searchspace and one or more configuration parameters. The wireless device mayreceive the second signal based on the second search space (e.g., viaradio resources of a second CORESET associated with the second searchspace). The wireless device may determine/decode the downlink controlinformation based on the first signal and the second signal.

In an example embodiment as shown in FIG. 40, a wireless device mayreceive configuration parameters of a CORESET. The configurationparameters of the CORESET may comprise one or more first parametersindicating that the first CORESET is usable with at least a secondCORESET for reception of control information. The wireless device mayreceive a first signal via first radio resources of the first CORESET.In an example, based on the first CORESET being usable with at least onesecond CORESET for reception of control information, the wireless expectat least one second signal from the at least one second CORESET forreception of the downlink control information. The wireless device mayreceive a second signal via second radio resources of the secondCORESET. The wireless device may determine/decode a downlink controlinformation based on the first signal and the second signal.

In an example, a wireless device may receive configuration parameters ofa search space. The configuration parameters of the search space maycomprise one or more first parameters indicating that the first searchspace is usable with at least a second search space for reception ofcontrol information. The wireless device may receive a first signalbased on the first search space (e.g., via first radio resources of afirst CORESET associated with the first search space). In an example,based on the first search space being usable with at least one secondsearch space for reception of control information, the wireless expectat least one second signal from the at least one second search space forreception of the downlink control information. The wireless device mayreceive a second signal based on the second search space (e.g., viasecond radio resources of the second CORESET associated with the secondsearch space). The wireless device may determine/decode a downlinkcontrol information based on the first signal and the second signal.

In an example embodiment as shown in FIG. 41, a wireless device maytransmit, to a base station, a capability message. The capabilitymessage may comprise one or more parameters that indicate a minimumnumber of symbols required by the wireless device to perform thedownlink control information (e.g., to receive/decode downlink controlinformation) and apply spatial QCL information, received in the downlinkcontrol information, for processing a downlink data channel (e.g.,PDSCH). The wireless device configuration parameters of a first CORESETand a second CORESET for receiving control information. Theconfiguration parameters of the first CORESET may indicate one or morefirst symbols for the first CORESET (e.g., symbol numbers of the firstCORESET in a slot) and the configuration parameters of the secondCORESET may indicate one or more second symbols for the second CORESET(e.g., symbol numbers of the second CORESET in a slot). The one or moresecond symbols may be after the one or more first symbol. For example,the one or more first symbols of the first CORESET may be in a firstslot and the one or more second symbols of the second CORESET may be ina second slot after the first slot. In an example, the second slot maybe adjacent to the first slot. For example, the one or more firstsymbols of the first CORESET and the one or more second symbols of thesecond CORESET may be in a slot wherein the one or more second symbolsare after the one or more first symbols. The wireless device may receivea first signal via the one or more first symbols of the first CORESET.The wireless device may receive a second signal via the one or moresecond symbols of the second CORESET. For example, the first signal andthe second signal may be repetitions of the downlink control or thedownlink control information may be mapped to bundled resources of thefirst radio resources of the first signal and second radio resources ofthe second signal. The wireless device may determine the downlinkcontrol information based on the first signal and the second signal. Thedownlink control information may comprise scheduling information forreception of a transport block via a downlink shared channel. Thedownlink control information may indicate a TCI state for reception ofthe transport block and the TCI state may indicate a spatial QCLinformation. The wireless device may receive the transport block basedon the TCI state and/or the spatial QCL information and the schedulinginformation wherein a duration between a last symbol of the one or moresecond symbols and the transport block/downlink shared channel is largerthan the minimum number of symbols indicated by the one or moreparameters of the capability message. The wireless device may receivethe transport block based on the TCI state and/or the spatial QCLinformation and the scheduling information based on a duration between alast symbol of the one or more second symbols and the transportblock/downlink shared channel being larger than the minimum number ofsymbols indicated by the one or more parameters of the capabilitymessage.

In an example embodiment as shown in FIG. 42, a wireless device mayreceive one or more messages comprising configuration parameters. Theconfiguration parameters may comprise first configuration parameters ofa plurality of CORESETs for receiving downlink control information. Theplurality of CORESETs may comprise a first CORESET and a second CORESETwherein the configuration parameters may indicate one or more firstsymbols for the first CORESET and one or more second symbols for thesecond CORESET. In an example, the first CORESET and the second CORESETmay be configured in the same slot. In an example, the first CORESET maybe configured in a first slot and the second CORESET may be configuredin a second slot. The second slot may be later than the second slot. Inan example, the second slot may be adjacent to the first slot. In anexample, the one or more second symbols may be after the one or morefirst symbols. The configuration parameters may comprise a first valueof a DRX timer. In an example, the DRX timer may be a DRX Inactivitytimer. The wireless device may receive a first signal via first radioresources of the first CORESET and in the one or more first symbols. Thewireless device may receive a second signal via second radio resourcesof the second CORESET and in the one or more second symbols. The firstsignal and the second signal may be associated with a first downlinkcontrol information. For example, the first signal and the second signalmay be repetitions of the first downlink control information. Forexample, the first downlink control information may be mapped to thefirst radio resources of the first signal and the second radio resourcesof the second signal (e.g., to the bundled resources). The wirelessdevice may determine/decode the first downlink control information basedon the first signal and the second signal. The first downlink controlinformation may comprise scheduling information for transmission orreception of a transport block (e.g., via an uplink data channel,downlink data channel or sidelink data channel). The wireless device maystart the DRX timer, with the first value, at a first timing based onthe downlink control information. The first timing may be after the oneor more second symbols used for reception of the second signal. Forexample, the first timing may be a third symbol after the one or moresecond symbols. The third symbol may be the earliest symbol after theone or more second symbols. The third symbol may be adjacent to the lastsymbol of the one or more second symbols. The wireless device may be ina DRX Active time based on the DRX timer running. The wireless devicemay monitor the downlink control channel based on being in the DRXActive time and the DRX timer running. The wireless device may receive asecond downlink control information based on monitoring the downlinkcontrol information. The second downlink control channel may comprisescheduling information. The wireless device may receive or transmit atransport block based on the scheduling information.

In an example embodiment as shown in FIG. 43, a wireless device mayreceive configuration parameters comprising a first RNTI. The first RNTImay be a C-RNTI. The configuration parameters may further comprise DRXconfiguration parameters and random access configuration parameters. TheDRX configuration parameters may be used by the wireless device for aDRX procedure that controls control channel monitoring by the wirelessdevice. The wireless device may use the random access configurationparameters for a random access process. The wireless device may transmita random access preamble in response to starting a random accessprocess. The random access process may be a four-step random accessprocess or a two-step random access process. The wireless device mayreceive a random access response based on the transmission of the randomaccess preamble. The wireless device may determine that the wirelessdevice is in Active time from a time of the reception of the randomaccess response and until a plurality of signals associated with adownlink control information is received. The downlink controlinformation may be associated with the first RNTI. In an example, theplurality of signals may be repetitions of the downlink controlinformation. In an example, the downlink control information may bemapped to radio resources of the plurality of signals (e.g., bundledresources). A signal in the plurality of signals may be received viaradio resources of a CORESET. In an example, the plurality of signalsmay comprise a first signal and a second signal wherein the first signalis received via first radio resources of a first CORESET and a secondsignal may be received via second radio resources of a second CORESET.The wireless device may determine scheduling information fortransmission or reception of a transport block based on the receivingthe plurality of signals and determining/decoding the downlink controlinformation. The wireless device may transmit or receive a transportblock based on the scheduling information.

In an example embodiment as shown in FIG. 44, a wireless device mayreceive configuration parameters of one or more secondary cells. Theconfiguration parameters may indicate a first value of a deactivationtimer of a first cell of the one or more secondary cells. The wirelessdevice may receive a plurality of signals associated with a downlinkcontrol information. In an example, the plurality of signals may berepetitions of the downlink control information. In an example, thedownlink control information may be mapped to the radio resources of theplurality of signals (e.g., mapped to the bundled resources). Thewireless device may determine/decode the downlink control informationbased on the plurality of signals. The downlink control information maycomprise/indicate scheduling information. The wireless device maydetermine the scheduling information. The scheduling information mayindicate an uplink grant or a downlink assignment on the first cell orfor the first cell (e.g., in case of carrier aggregation and in case thedownlink control information is received on a second cell different fromthe first cell). The wireless device may start the deactivation timerwith the first value after a first number of symbols from the lastsignal in the plurality of signals. For example, the first plurality ofsignals may comprise a first signal and a second signal, wherein thefirst radio resources of the first signal may span one or more firstsymbols and the second radio resources of the second signal may span oneor more second symbols. The wireless device may start the deactivationtimer after the first number of symbols from the last/latest symbol ofthe one or more second symbols.

In an example embodiment, a wireless device may receive configurationparameters of receiving downlink control information. The wirelessdevice may determine downlink control channel monitoringoccasions/timings based on the configuration parameters. Theconfiguration parameters may comprise a monitoring periodicity andoffset parameter or a duration parameter and the wireless device maydetermine a monitoring occasion/timing based on the monitoringperiodicity and offset parameter or the duration parameter. The wirelessdevice may determine that a plurality of signals is needed fordetermining/decoding a downlink control information. The wireless devicemay receive, in a first monitoring occasion/timing a first signal in theplurality of signals associated with the downlink control information.The wireless may determine a second monitoring occasion/timing based onthe first monitoring occasion/timing and/or based on determining thatthe plurality of signals is associated with the downlink controlinformation. The wireless device may receive, in the second monitoringoccasion/timing a second signal in the plurality of signals. Thewireless device may determine the downlink control information based onthe first signal and the second signal. The wireless device may transmitor receive a transport block based on the downlink control information.

In an example, a wireless device may receive one or more commands (e.g.,one or more MAC CEs) indicating that one or more CORESETs, comprising afirst CORESET, may be used for reception of a downlink controlinformation via repetition of the downlink control information. Forexample, the downlink control information may be received based on thefirst CORESET and a second CORESET. The one or more CORESETs maycomprise the first CPRESET and the second COREET. The command maycomprise a field, a value of the field indicating an identifier of thatthe first CORESET. An LCID associated with the command/MAC CE mayindicate that the command/MAC is for indicating one or more CORESETs forreceiving repetitions of the downlink control information. The wirelessdevice may determine that the command/MAC CE is for indicating one ormore CORESETs for receiving repetitions of the downlink controlinformation based on the LCID.

In an example, a wireless device may receive one or more commands (e.g.,one or more MAC CEs) indicating that one or more CORESETs, comprising afirst CORESET, may be used for reception of a downlink controlinformation by mapping the downlink control information to radioresources of the one or more CORESETs (e.g., bundling radio resources ofthe one or more CORESETs). For example, the downlink control informationmay be received based on the first CORESET and a second CORESET. The oneor more CORESETs may comprise the first CPRESET and the second COREET.The command may comprise a field, a value of the field indicating anidentifier of that the first CORESET. An LCID associated with thecommand/MAC CE may indicate that the command/MAC is for indicating oneor more CORESETs associated with the downlink control information. Thewireless device may determine that the command/MAC CE is for indicatingone or more CORESETs associated with the downlink control informationbased on the LCID.

In an example, a value of a field of the command/MAC CE may indicatewhether a CORESET is used for reception of downlink control informationby repetition or by resource bundling.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set, associated with a firstcontrol resource set identifier, and a second control resource setassociated with a second control resource set identifier. The wirelessdevice may receive a downlink control information via first radioresources of the first control resource set and second radio resourcesof the second control resource set wherein the first control resourceset identifier and the second control resource set identifier have thesame value. The wireless device may receive a downlink controlinformation via first radio resources of the first control resource setand second radio resources of the second control resource set based onthe first control resource set identifier and the second controlresource set identifier having the same value. The wireless device mayreceive a downlink control information via first radio resources of thefirst control resource set and second radio resources of the secondcontrol resource set wherein the wireless device expects that the firstcontrol resource set identifier and the second control resource setidentifier have the same value.

In an example embodiment, a wireless device may receive configurationparameters of a first search space, associated with a first search spaceidentifier, and a second search space associated with a second searchspace identifier. The wireless device may receive a downlink controlinformation via first radio resources of the first search space andsecond radio resources of the second search space wherein the firstsearch space identifier and the second search space identifier have thesame value. The wireless device may receive a downlink controlinformation via first radio resources of the first search space andsecond radio resources of the second search space based on the firstsearch space identifier and the second search space identifier havingthe same value. The wireless device may receive a downlink controlinformation via first radio resources of the first search space andsecond radio resources of the second search space wherein the wirelessdevice expects that the first search space identifier and the secondsearch space identifier have the same value.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set, associated with a firstcontrol resource set pool/group, and a second control resource setassociated with a second control resource set pool/group. The wirelessdevice may receive a downlink control information via first radioresources of the first control resource set and second radio resourcesof the second control resource set wherein the first control resourceset pool/group and the second control resource set pool/group are thesame. The wireless device may receive a downlink control information viafirst radio resources of the first control resource set and second radioresources of the second control resource set based on the first controlresource set pool/group and the second control resource set pool/groupbeing the same. The wireless device may receive a downlink controlinformation via first radio resources of the first control resource setand second radio resources of the second control resource set whereinthe wireless device expects the first control resource set pool/groupand the second control resource set pool/group to be the same.

In an example, the first control resource set pool/group may beassociated with the a first control resource set pool/group identifier.The second control resource set may be associated with a second controlresource set pool/group identifier. The first control resource setpool/group may be the same as the second control resource set pool/groupbased on the first control resource set pool/group identifier beingequal to the second control resource set pool/group identifier.

In an example embodiment, a wireless device may receive configurationparameters of a first search space, associated with a first search spacepool/group, and a second search space associated with a second searchspace pool/group. The wireless device may receive a downlink controlinformation via first radio resources of the first search space andsecond radio resources of the second search space wherein the firstsearch space pool/group and the second search space pool/group are thesame. The wireless device may receive a downlink control information viafirst radio resources of the first search space and second radioresources of the second search space based on the first search spacepool/group and the second search space pool/group being the same. Thewireless device may receive a downlink control information via firstradio resources of the first search space and second radio resources ofthe second search space wherein the wireless device expects the firstsearch space pool/group and the second search space pool/group to be thesame.

In an example, the first search space pool/group may be associated withthe a first search space pool/group identifier. The second search spacemay be associated with a second search space pool/group identifier. Thefirst search space pool/group may be the same as the second search spacepool/group based on the first search space pool/group identifier beingequal to the second search space pool/group identifier.

In an example, the receiving the downlink control information maycomprise receiving repetitions of a downlink control channel (e.g., adownlink control channel carrying the downlink control information) inthe first control resource set and the second control resource set. Thereceiving the downlink control information may comprise receivingrepetitions of the downlink control information via the first controlresource set and the second control resource set. In an example, thereceiving the downlink control information may comprise receivingrepetitions of a downlink control channel (e.g., a downlink controlchannel carrying the downlink control information) in the first searchspace and the second search space. The receiving the downlink controlinformation may comprise receiving repetitions of the downlink controlinformation via the first search and the second search space.

In an example, the downlink control information may be mapped to thefirst radio resources. The downlink control information is mapped to thesecond radio resources.

In an example, the receiving the downlink control information maycomprise bundling the first radio resources of the first controlresource set and the second radio resources of the second controlresource set. In an example, the receiving the downlink controlinformation comprises bundling the first radio resources of the firstsearch space and the second radio resources of the second search space.In an example, the downlink control information may be mapped to aplurality of radio resources comprising the first radio resources andthe second radio resources.

In an example embodiment, a base station may transmit configurationparameters of a first control resource set, associated with a firstcontrol resource set identifier, and a second control resource setassociated with a second control resource set identifier. In an example,a base station may transmit configuration parameters of a first searchspace, associated with a first search space identifier, and a secondsearch space associated with a second search space identifier. The basestation may transmit a downlink control information via first radioresources of the first control resource set and second radio resourcesof the second control resource set wherein the first control resourceset identifier and the second control resource set identifier have thesame value. The base station may transmit a downlink control informationvia first radio resources of the first control resource set and secondradio resources of the second control resource set based on the firstcontrol resource set identifier and the second control resource setidentifier having the same value. In an example, the base station maytransmit a downlink control information via first radio resources of thefirst search space and second radio resources of the second search spacewherein the first search space identifier and the second search spaceidentifier have the same value. The base station may transmit a downlinkcontrol information via first radio resources of the first search spaceand second radio resources of the second search space based on the firstsearch space identifier and the second search space identifier havingthe same value.

In an example embodiment, a base station may transmit configurationparameters of a first control resource set, associated with a firstcontrol resource set pool/group, and a second control resource setassociated with a second control resource set pool/group. In an example,the base station may transmit configuration parameters of a first searchspace, associated with a first search space pool/group, and a secondsearch space associated with a second search space pool/group. The basestation may transmit a downlink control information via first radioresources of the first control resource set and second radio resourcesof the second control resource set wherein the first control resourceset pool/group and the second control resource set pool/group are thesame. The base station may transmit a downlink control information viafirst radio resources of the first control resource set and second radioresources of the second control resource set based on the first controlresource set pool/group and the second control resource set pool/groupbeing the same. In an example, the base station may transmit a downlinkcontrol information via first radio resources of the first search spaceand second radio resources of the second search space wherein the firstsearch space pool/group and the second search space pool/group are thesame. The base station may transmit a downlink control information viafirst radio resources of the first search space and second radioresources of the second search space based on the first search spacepool/group and the second search space pool/group being the same.

In an example, the first control resource set pool may be associatedwith a first control resource set pool/group identifier. The secondcontrol resource set may be associated with a second control resourceset pool/group identifier. The first control resource set pool/group maybe the same as the second control resource set pool/group based on thefirst control resource set pool/group identifier being equal to thesecond control resource set pool/group identifier.

In an example, the first search space pool may be associated with afirst search space pool/group identifier. The second search space may beassociated with a second search space pool/group identifier. The firstsearch space pool/group may be the same as the second search spacepool/group based on the first search space pool/group identifier beingequal to the second search space pool/group identifier.

In an example, the transmitting the downlink control information maycomprise transmitting repetitions of a downlink control channel (e.g., adownlink control channel carrying the downlink control information) inthe first control resource set and the second control resource set. Inan example, the transmitting the downlink control information maycomprise transmitting repetitions of the downlink control information inthe first control resource set and the second control resource set.

In an example, the transmitting the downlink control information maycomprise transmitting repetitions of a downlink control channel (e.g., adownlink control channel carrying the downlink control information) inthe first search space and the second search space. In an example, thetransmitting the downlink control information may comprise transmittingrepetitions the downlink control information in the first search spaceand the second search space.

In an example, the base station may map the downlink control informationto the first radio resources. The base station may map the downlinkcontrol information to the second radio resources.

In an example, the transmitting the downlink control information maycomprise bundling the first radio resources of the first controlresource set and the second radio resources of the second controlresource set. In an example, the transmitting the downlink controlinformation comprises bundling the first radio resources of the firstsearch space and the second radio resources of the second search space.In an example, the base station may map the downlink control informationto a plurality of radio resources comprising the first radio resourcesand the second radio resources.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set, associated with a firstcontrol resource set identifier, and a second control resource setassociated with a second control resource set identifier. In an example,the wireless device may receive configuration parameters of a firstsearch space, associated with a first search space identifier, and asecond search space associated with a second search space identifier.The wireless device may receive a first signal via first radio resourcesof the first control resource set and a second signal via second radioresources of the second control resource set, wherein the first signaland the second signal are for reception of (e.g., associated with) adownlink control information. In an example, the wireless device mayreceive a first signal via first radio resources of the search space anda second signal via second radio resources of the second search space,wherein the first signal and the second signal are for reception of(e.g., associated with) a downlink control information. The wirelessdevice may ignore the first signal and/or the second signal based on thefirst control resource set identifier having a different value from thesecond control resource set identifier. In an example, the wirelessdevice may ignore the first signal and/or the second signal based on thefirst search space identifier having a different value from the secondsearch space identifier.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set, associated with a firstcontrol resource set pool/group (e.g., a first control resource setpool/group identifier) and a second control resource set associated witha second control resource set pool/group (e.g., a second controlresource set pool/group identifier). In an example, the wireless devicemay receive configuration parameters of a first search space associatedwith a first search space pool/group (e.g., a first search spacepool/group identifier), and a second search space pool/group (e.g., asecond search space pool/group identifier). The wireless device mayreceive a first signal via first radio resources of the first controlresource set and a second signal via second radio resources of thesecond control resource set, wherein the first signal and the secondsignal are for reception of (e.g., associated with) a downlink controlinformation. In an example, the wireless device may receive a firstsignal via first radio resources of the first search space and a secondsignal via second radio resources of the second search space, whereinthe first signal and the second signal are for reception of (e.g.,associated with) a downlink control information. The wireless device mayignore the first signal and/or the second signal based on the firstcontrol resource set pool/group (the first control resource setpool/group identifier) being different (having a different value) fromthe second control resource set pool/group (control resource setpool/group identifier). In an example, the wireless device may ignorethe first signal and/or the second signal based on the first searchspace pool/group (search space pool/group identifier) being different(having a different value) from the second search space pool/group(search space pool/group identifier).

In an example, the wireless device may determine/decode the downlinkcontrol information based on one of the first signal and the secondsignal. The wireless device may decode/determine the downlink controlinformation based on the first signal or based on the second signal.

In an example, the first signal and the second signal may be repetitionsof the downlink control information in the first control resource setand the second control resource set. In an example, the first signal andthe second signal may be repetitions of a downlink control channelcarrying the downlink control information in the first control resourceset and the second control resource set. In an example, the first signaland the second signal may be repetitions of the downlink controlinformation in the first search space and the second search space. In anexample, the first signal and the second signal may be repetitions of adownlink control channel carrying the downlink control information inthe first search space and the second search space. The downlink controlinformation is mapped to the first radio resources. The downlink controlinformation is mapped to the second radio resources. The downlinkcontrol information is mapped to the first radio resources and thedownlink control information is mapped to the second radio resources.

In an example, the wireless device may bundle the first radio resourcesof the first control resource set and the second radio resources of thesecond control resource set for reception of the downlink controlinformation. In an example, the wireless device may bundle the firstradio resources of the first search space and the second radio resourcesof the second search space for reception of the downlink controlinformation. The downlink control information may be mapped to aplurality of radio resources comprising the first radio resources andthe second radio resources.

In an example, the first control resource set may be in a first slot andthe second control resource set may be in a second slot. In an example,the first search space may be in a first slot and the second searchspace may be in a second slot.

In an example, the first control resource set and the second controlresource set may be in the same slot. In an example, the first searchspace and the second search space are in the same slot.

In an example, the configuration parameters may comprise firstconfiguration parameters, of the first control resource set, indicatingthe first control resource set identifier and the first radio resources;and second configuration parameters, of the second control resource set,indicating the second control resource set identifier and the secondradio resources. In an example, the configuration parameters maycomprise first configuration parameters, of the first search space,indicating the first search space identifier and the first radioresources; and second configuration parameters, of the second searchspace, indicating the second search space identifier and the secondradio resources.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set, associated with a firsttransmission configuration indicator (TCI) state, and a second controlresource set associated with a second TCI state. The wireless device mayreceive a downlink control information via first radio resources of thefirst control resource set and second radio resources of the secondcontrol resource set wherein the first TCI state and the second TCIstate are the same. The wireless device may receive a downlink controlinformation via first radio resources of the first control resource setand second radio resources of the second control resource set based onthe first TCI state and the second TCI state being the same. Thewireless device may receive a downlink control information via firstradio resources of the first control resource set and second radioresources of the second control resource set wherein the wireless deviceexpects that the first TCI state and the second TCI state to be thesame.

In an example, the wireless device may receive one or more (commands)(control elements) (MAC control elements) indicating an associationbetween the first control resource set and the first TCI state and anassociation between a second control resource set and the second TCIstate. The one or more (commands) (control elements) (MAC controlelements) may comprise one or more TCI State Indication for UE-specificPDCCH MAC CEs.

In an example, the first control resource set is associated with a firstTCI state identifier. The second control resource set is associated witha second TCI state identifier. The receiving the downlink controlinformation may be based on the first TCI state identifier and thesecond TCI state identifier having the same value. The first TCI stateidentifier and the second TCI state identifier may have the same values.The wireless device may expect that the first TCI state identifier andthe second TCI state identifier have the same value. In an example, theconfiguration parameters may comprise first configuration parameters ofthe first TCI state comprising the first TCI state identifier. Theconfiguration parameters may comprise second configuration parameters ofthe second TCI state comprising the second TCI state identifier.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set, associated with a firsttransmission configuration indicator (TCI) state, and a second controlresource set associated with a second TCI state. The wireless device mayreceive a downlink control information via first radio resources of thefirst control resource set and second radio resources of the secondcontrol resource set wherein the first TCI state and the second TCIstate indicate the same spatial quasi-colocation relation. In anexample, the wireless device may receive a downlink control informationvia first radio resources of the first control resource set and secondradio resources of the second control resource set based on the firstTCI state and the second TCI state indicating the same spatialquasi-colocation relation. In an example, the wireless device mayreceive a downlink control information via first radio resources of thefirst control resource set and second radio resources of the secondcontrol resource set wherein the wireless device may expect that thefirst TCI state and the second TCI state indicate the same spatialquasi-colocation relation.

In an example, the first TCI state and the second TCI state indicate thesame spatial quasi-colocation relation based on the first TCI state andthe second TCI state being associated with the same reference signal.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set, associated with a firsttransmission configuration indicator (TCI) state, and a second controlresource set associated with a second TCI state. The wireless device mayreceive a first signal via first radio resources of the first controlresource set and a second signal via second radio resources of thesecond control resource set, wherein the first signal and the secondsignal are for reception of (e.g., associated with) a downlink controlinformation. The wireless device may decode/determine the downlinkcontrol information based on one of the first TCI state or the secondTCI state based on the first TCI state and the second TCI state (e.g.,the first TCI state identifier and the second TCI state identifier)being different. In an example, the wireless device may decode/determinethe downlink control information based on one of the first signal or thesecond signal based on the first TCI state and the second TCI state(e.g., the first TCI state identifier and the second TCI stateidentifier) being different.

In an example, the wireless device may receive one or more (commands)(control elements) (MAC control elements) indicating an associationbetween the first control resource set and the first TCI state and anassociation between a second control resource set and the second TCIstate. The one or more (commands) (control elements) (MAC controlelements) may comprise one or more TCI State Indication for UE-specificPDCCH MAC CEs.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set, associated with a firsttransmission configuration indicator (TCI) state, and a second controlresource set associated with a second TCI state. The wireless device mayreceive a first signal via first radio resources of the first controlresource set and a second signal via second radio resources of thesecond control resource set, wherein the first signal and the secondsignal are for reception of (e.g., associated with) a downlink controlinformation. The wireless device may ignore the first signal and/or thesecond signal based on the first TCI state and the second TCI state(e.g., the first TCI state identifier and the second TCI stateidentifier) being different. In an example, the first control resourceset may be associated with a first TCI state identifier. The secondcontrol resource set may be associated with a second TCI stateidentifier. The ignoring the first signal and/or the second signal isbased on the first TCI state identifier and the second TCI stateidentifier having different values.

In an example, the wireless device may receive one or more (commands)(control elements) (MAC control elements) indicating an associationbetween the first control resource set and the first TCI state and anassociation between a second control resource set and the second TCIstate. The one or more (commands) (control elements) (MAC controlelements) may comprise one or more TCI State Indication for UE-specificPDCCH MAC CEs.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set, associated with a firsttransmission configuration indicator (TCI) state, and a second controlresource set associated with a second TCI state. The wireless device mayreceive a first signal via first radio resources of the first controlresource set and a second signal via second radio resources of thesecond control resource set, wherein the first signal and the secondsignal are for reception of e.g., (associated with) a downlink controlinformation. The wireless device may ignore the first signal and/or thesecond signal based on the first TCI state and the second TCI stateindicate different spatial quasi-colocation relations. In an example,the first TCI state and the second TCI state may indicate differentspatial quasi-colocation relations based on the first TCI state beingassociated with the a first reference signal and the second TCI statebeing associated with a second reference signal.

In an example, the receiving the downlink control information maycomprise receiving repetitions of a downlink control channel in thefirst control resource set and the second control resource set. Thereceiving the downlink control information may comprise receivingrepetitions of the downlink control information via the first controlresource set and the second control resource set. In an example, thedownlink control information may be mapped to the first radio resources.The downlink control information may be mapped to the second radioresources.

In an example, the receiving the downlink control information maycomprise bundling the first radio resources of the first controlresource set and the second radio resources of the second controlresource set. The downlink control information may be mapped to aplurality of radio resources comprising the first radio resources andthe second radio resources.

In an example embodiment, a base station may transmit configurationparameters of a first control resource set, associated with a firsttransmission configuration indicator (TCI) state, and a second controlresource set associated with a second TCI state. The base station maytransmit a downlink control information via first radio resources of thefirst control resource set and second radio resources of the secondcontrol resource set wherein the first TCI state and the second TCIstate are the same. The base station may transmit a downlink controlinformation via first radio resources of the first control resource setand second radio resources of the second control resource set based onthe first TCI state and the second TCI state being the same. In anexample, the first control resource set may be associated with a firstTCI state identifier. The second control resource set may be associatedwith a second TCI state identifier, wherein the first TCI stateidentifier and the second TCI state identifier may have the same values.The transmitting the downlink control information may be based on thefirst TCI state identifier and the second TCI state identifier havingthe same value.

In an example, the base station may transmit one or more (commands)(control elements) (MAC control elements) indicating an associationbetween the first control resource set and the first TCI state and anassociation between a second control resource set and the second TCIstate. The one or more (commands) (control elements) (MAC controlelements) may comprise one or more TCI State Indication for UE-specificPDCCH MAC CEs.

In an example, the transmitting the downlink control information maycomprise transmitting repetitions of a downlink control channel in thefirst control resource set and the second control resource set. In anexample, the transmitting the downlink control information may comprisetransmitting repetitions of the downlink control information via thefirst control resource set and the second control resource set. The basestation may map the downlink control information to the first radioresources; and the base station may map the downlink control informationto the second radio resources.

In an example, the transmitting the downlink control information maycomprise bundling the first radio resources of the first controlresource set and the second radio resources of the second controlresource set. The base station may map the downlink control informationto a plurality of radio resources comprising the first radio resourcesand the second radio resources.

In an example, the first control resource set is in a first slot and thesecond control resource set is in a second slot.

In an example, the first control resource set and the second controlresource set are in the same slot.

In an example, the configuration parameters comprise: firstconfiguration parameters, of the first control resource set, indicatingthe first TCI state (e.g., the first TCI state identifier) and the firstradio resources; and second configuration parameters, of the secondcontrol resource set, indicating the second TCI state (e.g., the secondTCI state identifier) and the second radio resources.

In an example embodiment, a wireless device may receive one or morecommands/control elements/MAC control elements indicating: a first TCIstate for reception of control information/downlink control channel viaa first control resource set; and a second TCI state for reception ofcontrol information/downlink control channel via a second controlresource set. The wireless device may ignore the one or morecommands/control elements/MAC control elements based on: the firstcontrol resource set and the second control resource set being forreception of (e.g., being configured to receive) a first downlinkcontrol information; and the first TCI state being different from thesecond TCI state.

In an example embodiment, a wireless device may receive one or morecommands/control elements/MAC control elements indicating: a first TCIstate for reception of control information/downlink control channel viaa first control resource set; and a second TCI state for reception ofcontrol information/downlink control channel via a second controlresource set. The wireless device may receive a first signal, via thefirst radio resources of the first control resource set, and a secondsignal via the second radio resources of the second control resourceset, wherein the first signal and the second signal are for receiving afirst downlink control information. The wireless device may ignore theone or more commands/control elements/MAC control elements based on thefirst TCI state being different from the second TCI state.

In an example embodiment, a wireless device may receive one or morecommands/control elements/MAC control elements indicating: a first TCIstate for reception of control information/downlink control channel viaa first control resource set; and a second TCI state for reception ofcontrol information/downlink control channel via a second controlresource set. The wireless device may a first signal, via the firstradio resources of the first control resource set, and a second signalvia the second radio resources of the second control resource set,wherein the first signal and the second signal are for receiving a firstdownlink control information. The wireless device may ignore the firstsignal and/or the second signal based on the first TCI state beingdifferent from the second TCI state.

In an example, the reception of the first downlink control informationmay comprise receiving repetitions of a downlink control channel (e.g.,a downlink control channel carrying the first downlink controlinformation) in the first control resource set and the second controlresource set. In an example, the reception of the first downlink controlinformation may comprise repetitions of the first downlink controlinformation via the first control resource set and the second controlresource set. In an example, the first downlink control information maybe mapped to the first radio resources; and the first downlink controlinformation may be mapped to the second radio resources.

In an example, the receiving the first downlink control information maycomprise bundling the first radio resources of the first controlresource set and the second radio resources of the second controlresource set. In an example, the first downlink control information maybe mapped to a plurality of radio resources comprising the first radioresources and the second radio resources.

In an example embodiment, a wireless device may receive firstconfiguration parameters of a first control resource set comprising afirst control resource set identifier; and second configurationparameters of a second control resource set comprising a second controlresource set identifier. In an example, the wireless device may receivethird configuration parameters indicating that the first controlresource set and the second control resource set are for reception of adownlink control information. The third configuration parameters mayindicate an association between the first control resource set and thesecond control resource set for reception of downlink controlinformation. In an example, the wireless device may receive dynamicsignaling, such as a control element, indicating that the first controlresource set and the second control resource set are for reception of adownlink control information. The dynamic signaling may indicate anassociation between the first control resource set and the secondcontrol resource set for reception of downlink control information. Thewireless device may receive a first signal via first radio resources ofthe first control resource set. The wireless device may receive a secondsignal via second radio resources of the second control resource set.The wireless device may decode/determine a downlink control informationbased on the first signal and the second signal.

In an example embodiment, a wireless device may receive a first signalbased on a first transmission configuration indicator. The wirelessdevice may determine a second transmission configuration based on thefirst transmission configuration indicator. The wireless device mayreceive a second signal based on the second transmission configurationindicator. The wireless device may determine a downlink controlinformation based on the first signal and the second signal. Thewireless device may receive or transmit a transport block based on thedownlink control information.

In an example embodiment, a wireless device may receive, by a wirelessdevice, a first signal based on a first control resource set. Thewireless device may determine a second control resource set based on thefirst control resource set. The wireless device may receive a secondsignal based on the second control resource set. The wireless device maydetermine a downlink control information based on the first signal andthe second signal. The wireless device may receive or transmit atransport block based on the downlink control information. In anexample, the first control resource set may be associated with a firstcontrol resource set identifier. The determine the second controlresource set may comprise determining a second control resource setidentifier based on the first control resource set identifier.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set and/or a first search spacefor a first bandwidth part and/or a first cell and a second controlresource set and/or search space for a second bandwidth part and/or asecond cell. The wireless device may receive a first signal based on(e.g., via) the first control resource set and/or the first searchspace. The wireless device may receive a second signal based on (e.g.,via) the second control resource set and/or the second search space. Thewireless device may determine a downlink control information based onthe first signal and the second signal. The wireless device may receiveor transmit a transport block based on the downlink control information.

In an example, the first signal and the second signal may be repetitionsof a downlink control channel (e.g., a downlink control channel carryingthe downlink control information) in the first control resource set orthe first search space and the second control resource set or the secondsearch space. In an example, the first signal and the second signal maybe repetitions of the downlink control information via the first controlresource set or the first search space and the second control resourceset or the second search space. The downlink control information may bemapped to first radio resources used for transmission of the firstsignal; and the downlink control information may be mapped to secondradio resources used for transmission of the first signal.

In an example, the receiving the first downlink control information maycomprise bundling the first radio resources of the first controlresource set and the second radio resources of the second controlresource set. The first downlink control information may be mapped to aplurality of radio resources comprising the first radio resources andthe second radio resources.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set, associated with a firsttransmission configuration indicator (TCI) state, and a second controlresource set associated with a second TCI state. The second TCI statemay be different from the first TCI state. The wireless device mayreceive a downlink control information via first radio resources of thefirst control resource set and second radio resources of the secondcontrol resource set, the downlink control information comprisingscheduling information for reception of a downlink transport block.Based on the downlink control information not indicating a TCI state forreception of the downlink transport block (e.g., not comprising a TCIfield) and the first TCI state being different from the second TCIstate, the wireless device may ignore the scheduling information.

In an example, the wireless device may receive one or more (commands)(control elements) (MAC control elements) indicating an associationbetween the first control resource set and the first TCI state and anassociation between a second control resource set and the second TCIstate. The one or more (commands) (control elements) (MAC controlelements) may comprise one or more TCI State Indication for UE-specificPDCCH MAC CEs.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set, associated with a firsttransmission configuration indicator (TCI) state, and a second controlresource set associated with a second TCI state. The second TCI statemay be different from the first TCI state. The wireless device mayreceive a downlink control information via first radio resources of thefirst control resource set and second radio resources of the secondcontrol resource set, the downlink control information comprisingscheduling information for reception of a downlink transport block.Based on the downlink control information not indicating a TCI state forreception of the downlink transport block (e.g., not comprising a TCIfield), the wireless device may determine one of the first TCI state andthe second TCI state as a determined TCI state for reception of adownlink transport block. The wireless device may receive the downlinktransport block based on the determined TCI state and based on thedownlink control information.

In an example, the wireless device may receive one or more (commands)(control elements) (MAC control elements) indicating an associationbetween the first control resource set and the first TCI state and anassociation between a second control resource set and the second TCIstate. The one or more (commands) (control elements) (MAC controlelements) may comprise one or more TCI State Indication for UE-specificPDCCH MAC CEs.

In an example, the first control resource set may be associated with afirst TCI state identifier. The second control resource set isassociated with a second TCI state identifier.

In an example, the determining the one of the first TCI state and thesecond TCI state and/or the ignoring the scheduling information of thedownlink control information may be further based on a time offsetbetween the reception of the downlink control information and thedownlink transport block being equal to or greater than a threshold. Forexample, the first radio resources comprise/span one or more firstsymbols. The second radio resources comprise/span one or more secondsymbols. A time of reception of the downlink control information may bebased on the one or more second symbols. In an example, the thresholdmay be based on a capability of the wireless device.

In an example, the receiving the downlink control information maycomprise receiving repetitions of a downlink control channel (e.g., adownlink control channel carrying the downlink control information) inthe first control resource set and the second control resource set. Inan example, the receiving the downlink control information may comprisereceiving repetitions of the downlink control information via the firstcontrol resource set and the second control resource set. In an example,the downlink control information may be mapped to the first radioresources. The downlink control information may be mapped to the secondradio resources.

In an example, the receiving the downlink control information maycomprise bundling the first radio resources of the first controlresource set and the second radio resources of the second controlresource set. The downlink control information may be mapped to aplurality of radio resources comprising the first radio resources andthe second radio resources.

In an example embodiment, the wireless device may receive, via firstradio resources, a first signal associated with (e.g., for reception of)a downlink control information. The wireless device may determine secondradio resources based on the first radio resources. The wireless devicemay receive a second signal based on/via the second radio resources,wherein the second signal may be associated with (e.g., may be forreception of) the downlink control information. The wireless device maydecode/determine the downlink control information based on the firstsignal and the second signal.

In an example, the wireless device may receive configuration parametersof a first control resource set and a second control resource set,wherein the first radio resources may be for the first control resourceset and the second radio resources may be for the second controlresource set. In an example, the wireless device may receiveconfiguration parameters of a first search space and a second searchspace, wherein the first radio resources may be associated with thefirst search space and the second radio resources may be associated withthe second search space. In an example, the configuration parameters maycomprise a parameter indicating an association between the first controlresource set and the second control resource set. In an example, theconfiguration parameters may comprise a parameter indicating anassociation between the first search space and the second search space.The determining the second radio resources may be based on theparameter.

In an example, the wireless device may receive configuration parametersof a control resource set, wherein the first radio resources and thesecond radio resources are for the control resource set.

In an example, the wireless device may receive a configurationparameter, wherein the determining the second radio resources is basedon the configuration parameter.

In an example, the determining/decoding the downlink control informationmay comprise receiving repetitions of a downlink control channel (e.g.,a downlink control channel carrying the downlink control information) ina first control resource set and a second control resource set. In anexample, the determining/decoding the downlink control information maycomprise receiving repetitions of the downlink control information via afirst control resource set and a second control resource set. In anexample, the determining/decoding the downlink control information maycomprise receiving repetitions of the downlink control information via afirst search space and a second search space. In an example, the firstradio resources may be for the first control resource set and the secondradio resources are for the second control resource set. In an example,the first radio resources may be for the first search space and thesecond radio resources may be for the second search space. The downlinkcontrol information may be mapped to the first radio resources; and thedownlink control information may be mapped to the second radioresources.

In an example, the determining/decoding the downlink control informationmay comprise bundling the first radio resources and the second radioresources. The first radio resources may be for a first control resourceset and the second radio resources may be for a second control resourceset. The first radio resources may be for a first search space and thesecond radio resources may be for a second search space. In an example,the downlink control information may be mapped to a plurality of radioresources comprising the first radio resources and the second radioresources.

In an example embodiment, a wireless device may receive configurationparameters of a plurality of control resource sets, comprising a firstcontrol resource set and a second control resource set, for reception ofcontrol information. The first control resource set and the secondcontrol resource set may be for a bandwidth part. In an example, thewireless device may receive configuration parameters of a plurality ofsearch spaces, comprising a first search space and a second searchspace, for reception of control information. The wireless device mayreceive a first signal via the first control resource set. The wirelessdevice may receive the first signal via the first search space. Thewireless device may determine the second control resource set based onthe first control resource set. In an example, the wireless device maydetermine the second search space based on the first search space. Thewireless device may receive a second signal based on (e.g., via) thesecond control resource set. In an example, the wireless device mayreceive a second signal based on (e.g., via) the second search space.The wireless device may decode/determine a downlink control informationbased on the first signal and the second signal.

In an example, the configuration parameters comprise one or more firstconfiguration parameters. The determining the second control resourceset may be based on the one or more first configuration parameters. Theone or more first configuration parameters may be for the first controlresource set. In an example, the determining the second search space maybe based on the one or more first configuration parameters. The one ormore first configuration parameters may be for the first search space.In an example the one or more first configuration parameters mayindicate an association between the first control resource set and thesecond control resource set. In an example, the one or more firstconfiguration parameters may indicate an association between the firstsearch space and the second search space.

In an example embodiment, a wireless device may receive configurationparameters of a first control resource set comprising one or more firstparameters indicating that the first control resource set is usable withat least a second control resource set for reception of controlinformation. The wireless device may receive configuration parameters ofa first search space comprising one or more first parameters indicatingthat the first search space is usable with at least a second searchspace for reception of control information. The wireless device may afirst signal (via first radio resources of the first control resourceset. In an example, the wireless device may receive a first signalassociated with the first search space. The wireless device may receivea second signal via second radio resources of the second controlresource set. In an example, the wireless device may receive a secondsignal associated with a second search space. The wireless device maydetermine/decode a downlink control information based on the firstsignal and the second signal.

In an example, the receiving the first signal and receiving the secondsignal may comprise receiving repetitions of a downlink control channel(e.g., a control channel carrying the downlink control information) inthe first control resource set and the second control resource set. Inan example, the receiving the first signal and receiving the secondsignal may comprise receiving repetitions of the downlink controlinformation via the first control resource set and the second controlresource set. In an example, the receiving the first signal andreceiving the second signal may comprise receiving repetitions of thedownlink control information based on the first search space and thesecond search space.

In an example, the receiving the downlink control information maycomprise receiving repetitions of a downlink control channel (e.g., acontrol channel carrying the downlink control information) in the firstcontrol resource set and the second control resource set. In an example,the receiving the downlink control information may comprise receivingrepetitions of the downlink control information via the first controlresource set and the second control resource set. In an example, thereceiving the downlink control information may comprise receivingrepetitions of the downlink control information based on the firstsearch space and the second search space. The downlink controlinformation may be mapped to the first radio resources and the downlinkcontrol information may be mapped to the second radio resources.

In an example, the receiving the first signal and receiving the secondsignal comprise bundling the first radio resources of the first controlresource set and the second radio resources of the second controlresource set. In an example, the receiving the downlink controlinformation may comprises bundling the first radio resources of thefirst control resource set and the second radio resources of the secondcontrol resource set. The downlink control information may be mapped toa plurality of radio resources comprising the first radio resources andthe second radio resources.

In an example, the one or more first parameters, indicating that thefirst control resource set/search space is usable with at least a secondcontrol resource set/search space for reception of control information,may indicate a choice between repetition of a downlink controlinformation or bundling radio resources for reception of a downlinkcontrol information. The one or more first parameters may indicate oneof repetition and the bundling.

In an example, a wireless device may receive a downlink controlinformation comprising a field, a value of the field indicating that thedownlink control information is repeated. The wireless device mayreceive a repeated downlink control information. The wireless device maydetermine scheduling information based on the downlink controlinformation and the repeated downlink control information. The wirelessdevice may receive or transmit a transport block based on the schedulinginformation and based on the scheduling information being for receptionof a transport block or for transmission of a transport block.

In an example embodiment, a wireless device may receive, via a firstcontrol resource set, a downlink control information comprising a field,a value of the field indicating that the downlink control information isrepeated in a second control resource set. The wireless device mayreceive a repeated downlink control information via the second controlresource set. The wireless device may determine scheduling informationbased on the downlink control information and the repeated downlinkcontrol information. The wireless device may receive or transmit atransport block based on the scheduling information and based on thescheduling information being for reception of a transport block or fortransmission of a transport block.

In an example embodiment, a wireless device may transmit to a basestation, a capability message comprising one or more parametersindicating a minimum number of symbols required by the wireless deviceto perform a downlink control channel reception and applying spatialquasi-colocation (QCL) information received in a downlink controlinformation for processing a downlink data channel. The wireless devicemay receive, for receiving control information, configuration parametersof a first control resource set and a second control resource set, theconfiguration parameters indicating one or more first symbols for thefirst control resource set and one or more second symbols for the secondcontrol resource set. The wireless device may receive a first signal viathe one or more first symbols of the first control resource set. Thewireless device may receive a second signal via the one or more secondsymbols of the second control resource set. The wireless device maydetermine/decode a downlink control information based on the firstsignal and the second signal, the downlink control informationindicating: scheduling information for reception of a transport block;and a transmission configuration indicator (TCI) state indicating aspatial QCL. The wireless device may receive the transport block via thedownlink data channel based on the TCI state and the schedulinginformation wherein a duration between a last symbol of the one or moresecond symbols and the transport block (e.g., the downlink data channelcarrying the transport block is larger than the minimum number ofsymbols. The wireless device may receive the transport block via thedownlink data channel based on the TCI state and the schedulinginformation based on a duration between a last symbol of the one or moresecond symbols and the transport block (e.g., the downlink data channelcarrying the transport block being larger than the minimum number ofsymbols.

In an example, the one or more second symbols may be after the one ormore first symbols.

In an example, the one or more first symbols are in a first slot and theone or more second symbols are in a second slot, the second slot may beafter the first slot. In an example, the second slot may be immediatelyafter (e.g., adjacent to) the first slot.

In an example, the receiving the first signal and receiving the secondsignal may comprise receiving repetitions of a downlink control channel(e.g., a downlink control channel carrying the downlink controlinformation) in the first control resource set and the second controlresource set. In an example, the wireless device may receive thedownlink control information via the first control resource set and thesecond control resource set. In an example, the determining/decoding thedownlink control information may comprise receiving repetitions of adownlink control channel (e.g., a downlink control channel carrying thedownlink control information) in the first control resource set and thesecond control resource set. The downlink control information may bemapped to the first radio resources; and the downlink controlinformation may be mapped to the second radio resources.

In an example, the receiving the first signal and receiving the secondsignal may comprise bundling the first radio resources of the firstcontrol resource set and the second radio resources of the secondcontrol resource set. In an example, the receiving the downlink controlinformation may comprise bundling the first radio resources of the firstcontrol resource set and the second radio resources of the secondcontrol resource set. In an example, the downlink control informationmay be mapped to a plurality of radio resources comprising the firstradio resources and the second radio resources.

In an example embodiment, a wireless device may receive: firstconfiguration parameters, of a first control resource set and a secondcontrol resource set, indicating one or more first symbols for the firstcontrol resource set and one or more second symbols for the secondcontrol resource set; and a first value of a discontinuous receptiontimer. The wireless device may receive a first signal via the one ormore first symbols of the first control resource set. The wirelessdevice may receive a second signal via the one or more second symbols ofthe second control resource set. The wireless device maydetermine/decode a first downlink control information based on the firstsignal and the second signal, the downlink control informationindicating scheduling information for reception of transport block via adownlink transmission channel or transmission of a transport block viaan uplink transmission channel. The wireless device may start thediscontinuous reception timer, with the first value, after a last symbolof the one or more second symbols. In an example, the wireless devicemay start the discontinuous reception timer, with the first value, at anearliest symbol after a last symbol of the one or more second symbols.The wireless device may start the discontinuous reception timer at asymbol adjacent to a last symbol of the one or more second symbols. Thewireless device may receive a second downlink control information whilethe discontinuous reception timer is running.

In an example, the one or more second symbols are after the one or morefirst symbols.

In an example, the one or more first symbols are in a first slot and theone or more second symbols are in a second slot. The second slot isafter the first slot. In an example, the second slot may be immediatelyafter (e.g., adjacent to) the first slot.

In an example, the receiving the first signal and receiving the secondsignal may comprise receiving repetitions of a downlink control channel(e.g., a downlink control channel carrying the downlink controlinformation) in the first control resource set and the second controlresource set. In an example, the determining/decoding the downlinkcontrol information may comprise receiving repetitions of a downlinkcontrol channel (e.g., a downlink control channel carrying the downlinkcontrol information) in the first control resource set and the secondcontrol resource set. The wireless device may receive the downlinkcontrol information via the first control resource set and the secondcontrol resource set. The downlink control information may be mapped tothe first radio resources; and the downlink control information may bemapped to the second radio resources.

In an example, the receiving the first signal and receiving the secondsignal may comprise bundling the first radio resources of the firstcontrol resource set and the second radio resources of the secondcontrol resource set. The receiving the downlink control information maycomprise bundling the first radio resources of the first controlresource set and the second radio resources of the second controlresource set. The downlink control information is mapped to a pluralityof radio resources comprising the first radio resources and the secondradio resources.

In an example embodiment, a wireless device may receive configurationparameters comprising: a first radio network temporary identifier(RNTI); discontinuous reception configuration parameters; and randomaccess configuration parameters. The wireless device may transmit arandom access preamble, in response to starting a random access processand based on the random access configuration parameters. The wirelessdevice may receive a random access response based on the transmittingthe random access preamble. The wireless device may determine that thewireless device is in an Active time after the receiving the randomaccess response and until a plurality of signals associated with adownlink control information is received, wherein the downlink controlinformation may be associated with the first RNTI. The wireless devicemay determine scheduling information based on receiving the plurality ofsignals. The wireless device may receive a transport block based on thescheduling information.

In an example, the receiving the plurality of signals may comprisereceiving repetitions of a downlink control channel (e.g., a downlinkcontrol channel carrying the downlink control information) in a firstcontrol resource set and a second control resource set. In an example,the receiving the plurality of signals may comprise receivingrepetitions of the downlink control information via a first controlresource set and a second control resource set. The downlink controlinformation is mapped to first radio resources associated with a firstsignal of the plurality of signals; and the downlink control informationis mapped to second radio resources associated with a second signal ofthe plurality of signals. In an example, receiving the plurality ofsignals may comprise bundling first radio resources of a first controlresource set and second radio resources of a second control resourceset, wherein: a first signal, of the plurality of signals, is receivedvia the first radio resources; and a second signal, of the plurality ofsignals, is received via the second radio resources. The downlinkcontrol information is mapped to a plurality of radio resourcescomprising: first radio resources associated with a first signal of theplurality of signals; and second radio resources associated with asecond signal of the plurality of signals.

In an example embodiment, a wireless device may receive discontinuousreception configuration parameters comprising a first value of a firsttimer. The wireless device may receive a plurality of signals associatedwith a first downlink control information. The wireless device maydetermine, based on the plurality of signals, the first downlink controlinformation comprising scheduling information. Based on the schedulinginformation indicating a new transmission (e.g., a new uplink ordownlink or sidelink transmission), the wireless device may start thefirst timer with the first value. The wireless device may determine asecond downlink control information while on the first timer running.

In an example, the wireless device may start the first timer is in afirst symbol after the last signal in the plurality of signals.

In an example, first radio resources, associated with a first signal inthe plurality of signals, may span/comprise one or more first symbols.Second radio resources, associated with a second signal in the pluralityof signals, may span/comprise one or more second symbols. The wirelessdevice may start the first timer is in a first symbol immediately aftera last/latest symbol in the one or more second symbols.

In an example, receiving the plurality of signals may comprise receivingrepetitions of a downlink control channel (e.g., a downlink controlchannel carrying the first downlink control information) in a firstcontrol resource set and a second control resource set. In an example,receiving the plurality of signals may comprise receiving repetitions ofthe first downlink control information via a first control resource setand a second control resource set. The first downlink controlinformation may be mapped to first radio resources associated with afirst signal of the plurality of signals. The first downlink controlinformation may be mapped to second radio resources associated with asecond signal of the plurality of signals.

In an example, the receiving the plurality of signals may comprisebundling first radio resources of a first control resource set andsecond radio resources of a second control resource set, wherein: afirst signal, of the plurality of signals, is received via the firstradio resources; and a second signal, of the plurality of signals, isreceived via second radio resources. The first downlink controlinformation may be mapped to a plurality of radio resources comprising:first radio resources associated with a first signal of the plurality ofsignals; and second radio resources associated with a second signal ofthe plurality of signals.

In an example embodiment, a wireless device may receive configurationparameters comprising a first value of a deactivation timer of asecondary cell. The wireless device may receive a plurality of signals,associated with a downlink control information. The wireless device maydetermine, based on the plurality of signals, the downlink controlinformation comprising scheduling information. Based on the schedulinginformation indicating an uplink grant or downlink assignment on thesecondary cell or for the secondary cell, the wireless device may startthe deactivation timer with the first value. The wireless device maydeactivate the secondary cell based on the deactivation timer expiring.

In an example, the staring the deactivation timer may be after a firstnumber of symbols from the last signal in the plurality of signals.

In an example, first radio resources, associated with a first signal inthe plurality of signals, may span/comprise one or more first symbols.Second radio resources, associated with a second signal in the pluralityof signals, may span/comprise one or more second symbols. The staringthe deactivation timer may be after a first number of symbols from alast/latest symbol in the one or more second symbols.

In an example, receiving the plurality of signals may comprise receivingrepetitions of a downlink control channel (e.g., a downlink controlchannel carrying the downlink control information) in a first controlresource set and a second control resource set. In an example, receivingthe plurality of signals may comprise receiving repetitions of thedownlink control information via a first control resource set and asecond control resource set. The downlink control information may bemapped to first radio resources associated with a first signal of theplurality of signals; and the downlink control information may be mappedto second radio resources associated with a second signal of theplurality of signals.

In an example, the receiving the plurality of signals may comprisebundling first radio resources of a first control resource set andsecond radio resources of a second control resource set, wherein: afirst signal, of the plurality of signals, may be received via the firstradio resources; and a second signal, of the plurality of signals, maybe received via second radio resources. The downlink control informationmay be mapped to a plurality of radio resources comprising: first radioresources associated with a first signal of the plurality of signals;and second radio resources associated with a second signal of theplurality of signals.

A control channel may be used for transmission of downlink controlinformation. The reliability of control channel transmission may beimportant for proper wireless device and wireless network operation. Thecontrol channel transmission may not be reliable, for example inmultiple transmission reception point scenarios, for wireless deviceswith reduced capability or in other scenarios. There is a need toenhance control channel transmission reliability. Example embodimentsenhance the configuration signaling and control channel transmissionprocesses to enhance the reliability of control channel transmission.

In example embodiments, a wireless device may receive one or moremessages comprising configuration parameters. The one or more messagesmay comprise one or more RRC messages. The configuration parameters(e.g., the configuration parameters included in the one or more RRCmessages) may comprise configuration parameters of one or more cells.The configuration parameters of a cell may comprise configurationparameters of one or more BWPs (e.g., one or more DL BWPs or one or moreUL BWPs of a cell). The configuration parameters of a BWP (e.g., a DLBWP) may comprise control channel configuration parameters for adownlink control channel (e.g., PDCCH). The control channelconfiguration parameters of a downlink control channel may compriseCORESET configuration parameters of one or more CORESETs associated withthe downlink control channel and search space configuration parametersof one or more search spaces associated the downlink control channel. Inan example, the control channel configuration parameters may compriseidentifiers of one or more CORESETs and one or more search spacesassociated with the downlink control channel. In an example, an IEPDCCH-Config may be used to configure UE specific PDCCH parameters suchas control resource sets (CORESET), search spaces and additionalparameters for acquiring the PDCCH. In an example, an IEControlResourceSet may be used to configure a time/frequency controlresource set (CORESET) in which to search for downlink controlinformation. In an example, an IE SearchSpace may define how/where tosearch for PDCCH candidates. Each search space may be associated withone ControlResourceSet. The IE search space may include an identifier ofthe search space and an identifier of a CORESET associated with thesearch space.

In an example embodiment shown in FIG. 45, the configuration parametersreceived, by the wireless device, may include first configurationparameters of a first search space and second configuration parametersof a second search space. The configuration parameters may furtherinclude at least one configuration parameters indicating that the firstsearch space and the second search space are used together for receptionof downlink control information (DCI). The at least one configurationparameter may link the first search space and the second search space.The first search space may be used for reception of DCI and the secondsearch space may be used for reception of a repetition of the DCI. Theat least one configuration parameter may indicate that the first searchspace is used for reception of a DCI and the second search space is usedfor reception of a repetition of the DCI. In an example, the firstconfiguration parameters of the first search space or the secondconfiguration parameters of the second search space may include the atleast one configuration parameter. In an example, a first value of aconfiguration parameter of the first search space and a second value ofa corresponding configuration parameter of the second search space maybe the same. In an example, the first value of the configurationparameter of the first search space and the second value of thecorresponding configuration parameter of the second search space may bethe same based on the first search space and the second search spacebeing used together (e.g., being linked) for reception of DCI. In anexample, the wireless device may expect that the first value of theconfiguration parameter of the first search space and the second valueof the corresponding configuration parameter of the second search spaceto be the same.

The wireless device may receive a first signal associated with a firstDCI based on the first search space. The wireless device may receive thefirst signal associated with the first DCI based on the firstconfiguration parameters of the first search space. The wireless devicemay receive the first signal associated with the first DCI in responseto monitoring the first search space based on the first configurationparameters of the first search space. First configuration parameters ofthe first search space may include a first monitoring periodicity andoffset, a first duration, a first monitoringSymbolsWithinSlot, a firstnrofcandidates, etc. The first configuration of the first search spacemay comprise a first searchSpaceType parameter indicating whether thetype of the first search space is a common search space or a wirelessdevice-specific search space. The first configuration parameters of thefirst search space may further comprise a first identifier of a firstCORESET associated with the first search space. In an example, the firstCORESET may be for a first cell or a first BWP of the first cell. Thewireless device may receive the first signal based on resourcesassociated with the first CORESET and indicated by the configurationparameters of the first CORESET. In an example, the first CORESET may beassociated with a first TCI state. The configuration parameters of thefirst CORESET may indicate the first TCI state.

The wireless device may receive a second signal associated with arepetition of the first DCI based on the second search space. In anexample, the wireless device may determine the second search space inresponse to receiving the first signal and based on the at least oneconfiguration parameter indicating that the first search space and thesecond search space are used together for (e.g., are linked for)receiving DCI. The wireless device may receive the second signalassociated with repetition of the first DCI based on the secondconfiguration parameters of the second search space. The wireless devicemay receive the second signal associated with repetition of the firstDCI in response to monitoring the second search space based on thesecond configuration parameters of the second search space. The secondconfiguration parameters of the second search space may include a secondmonitoring periodicity and offset, a second duration, a secondmonitoringSymbolsWithinSlot, a second nrofcandidates, etc. The secondconfiguration of the second search space may comprise a secondsearchSpaceType parameter indicating whether the type of the secondsearch space is a common search space or a wireless device-specificsearch space. The second configuration parameters of the second searchspace may further comprise a second identifier of a second CORESETassociated with the second search space. In an example, the secondCORESET may be for a second cell or a second BWP of the second cell. Inan example, the first cell and the second cell may be the same. In anexample, the first BWP and the second BWP may be the same. In anexample, the second CORESET may be associated with a second TCI state.The configuration parameters of the second CORESET may indicate thesecond TCI state. The wireless device may receive the second signalbased on resources associated with the second CORESET and indicated bythe configuration parameters of the second CORESET. In an intra-slotexample, the first CORESET and the second CORESET may be in the sameslot. In an inter-slot example, the first CORESET and the second CORESETmay be in different slots.

In an example, the wireless device may determine the first DCI based onand in response to receiving the first signal and the second signal. Thefirst DCI may comprise scheduling information, e.g., transmissionparameters for transmission of a transport block or reception parametersfor receiving a transport block. The wireless device may transmit orreceive a transport block based on the scheduling information of thefirst DCI.

In an example, a first value of a configuration parameter of the firstCORESET, associated with the first search space, and a second value of acorresponding configuration parameter of the second CORESET, associatedwith the second search space, may be the same. In an example, the firstvalue of the configuration parameter of the first CORESET and the secondvalue of the corresponding configuration parameter of the second CORESETmay be the same based on the first search space and the search spacebeing used together (e.g., being linked) for reception of DCI. In anexample, the wireless device may expect that the first value of theconfiguration parameter of the first CORESET and the second value of thecorresponding configuration parameter of the second CORESET to be thesame.

In example embodiment shown in FIG. 46 and FIG. 47, the configurationparameters received, by the wireless device, may include firstconfiguration parameters of a first search space and secondconfiguration parameters of a second search space. The configurationparameters may further include at least one configuration parametersindicating that the first search space and the second search space areused together for reception of downlink control information (DCI). Theat least one configuration parameter may link the first search space andthe second search space. The first search space may be used forreception of DCI and the second search space may be used for receptionof a repetition of the DCI. The at least one configuration parameter mayindicate that the first search space is used for reception of a DCI andthe second search space is used for reception of a repetition of theDCI. In an example, the first configuration parameters of the firstsearch space or the second configuration parameters of the second searchspace may include the at least one configuration parameter.

The wireless device may receive a first signal associated with a DCIbased on the first search space. The wireless device may receive thefirst signal associated with the DCI based on the first configurationparameters of the first search space. The wireless device may receivethe first signal associated with the DCI in response to monitoring thefirst search space based on the first configuration parameters of thefirst search space. First configuration parameters of the first searchspace may include a first monitoring periodicity and offset, a firstduration, a first monitoringSymbolsWithinSlot, a first nrofcandidates,etc. The first configuration of the first search space may comprise afirst searchSpaceType parameter indicating whether the type of the firstsearch space is a common search space or a wireless device-specificsearch space. The first configuration parameters of the first searchspace may further comprise a first identifier of a first CORESETassociated with the first search space. In an example, the first CORESETmay be for a first cell or a first BWP of the first cell. The wirelessdevice may receive the first signal based on resources associated withthe first CORESET and indicated by the configuration parameters of thefirst CORESET. In an example, the first CORESET may be associated with afirst TCI state. The configuration parameters of the first CORESET mayindicate the first TCI state.

The wireless device may receive a second signal associated with arepetition of the first DCI based on the second search space. In anexample, the wireless device may determine the second search space inresponse to receiving the first signal and based on the at least oneconfiguration parameter indicating that the first search space and thesecond search space are used together for (e.g., are linked for)receiving DCI. The wireless device may receive the second signalassociated with repetition of the first DCI based on the secondconfiguration parameters of the second search space. The wireless devicemay receive the second signal associated with repetition of the firstDCI in response to monitoring the second search space based on thesecond configuration parameters of the second search space. The secondconfiguration parameters of the second search space may include a secondmonitoring periodicity and offset, a second duration, a secondmonitoringSymbolsWithinSlot, a second nrofcandidates, etc. The secondconfiguration of the second search space may comprise a secondsearchSpaceType parameter indicating whether the type of the secondsearch space is a common search space or a wireless device-specificsearch space. The second configuration parameters of the second searchspace may further comprise a second identifier of a second CORESETassociated with the second search space. In an example, the secondCORESET may be for a second cell or a second BWP of the second cell. Inan example, the wireless device may determine the first DCI based on andin response to receiving the first signal and the second signal. Thefirst DCI may comprise scheduling information, e.g., transmissionparameters for transmission of a transport block or reception parametersfor receiving a transport block. The wireless device may transmit orreceive a transport block based on the scheduling information of thefirst DCI.

In an example, a first value of a configuration parameter of the firstsearch space and a second value of a corresponding configurationparameter of the second search space may be the same. In an example, thefirst value of the configuration parameter of the first search space andthe second value of the corresponding configuration parameter of thesecond search space may be the same based on the first search space andthe second search space being used together (e.g., being linked) forreception of DCI. In an example, the wireless device may expect that thefirst value of the configuration parameter of the first search space andthe second value of the corresponding configuration parameter of thesecond search space to be the same. In an example, receiving the firstsignal based on the first configuration parameters of the first searchspace and receiving the second signal based on the second configurationparameters of the second search space are based on the first value ofthe configuration parameter of the first search space and the secondvalue of the corresponding configuration parameter of the second searchspace being the same. In an example, a first value of a configurationparameter of the first CORESET, associated with the first search space,and a second value of a corresponding configuration parameter of thesecond CORESET, associated with the second search space, may be thesame. In an example, the first value of the configuration parameter ofthe first CORESET and the second value of the correspondingconfiguration parameter of the second CORESET may be the same based onthe first search space and the search space being used together (e.g.,being linked) for reception of DCI. In an example, the wireless devicemay expect that the first value of the configuration parameter of thefirst CORESET and the second value of the corresponding configurationparameter of the second CORESET to be the same. In an example, receivingthe first signal based on the first configuration parameters of thefirst search space and receiving the second signal based on the secondconfiguration parameters of the second search space are based on thefirst value of the configuration parameter of the first CORESET and thesecond value of the corresponding configuration parameter of the secondCORESET being the same.

In an example embodiment shown in FIG. 48, a first value of aconfiguration parameter of the first search space and a second value ofa corresponding configuration parameter of the second search space maybe different. In an example, the wireless device may expect that thefirst value of the configuration parameter of the first search space andthe second value of the corresponding configuration parameter of thesecond search space to be the same. In an example, based on the firstvalue of the configuration parameter of the first search space and thesecond value of the corresponding configuration parameter of the secondsearch space being different, the wireless device may ignore at leastone of the first signal and the second signal.

In an example embodiment shown in FIG. 49, a first value of aconfiguration parameter of the first CORESET, associated with the firstsearch space, and a second value of a corresponding configurationparameter of the second CORESET, associated with the second searchspace, may be different. In an example, the wireless device may expectthat the first value of the configuration parameter of the first CORESETand the second value of the corresponding configuration parameter of thesecond CORESET to be the same based on the first search space and thesearch space being used together (e.g., being linked) for reception ofDCI. In an example, based on the first value of the configurationparameter of the first CORESET and the second value of the correspondingconfiguration parameter of the second CORESET being different, thewireless device may ignore at least one of the first signal and thesecond signal.

In accordance with various exemplary embodiments in the presentdisclosure, a device (e.g., a wireless device, a base station and/oralike) may include one or more processors and may include memory thatmay store instructions. The instructions, when executed by the one ormore processors, cause the device to perform actions as illustrated inthe accompanying drawings and described in the specification. The orderof events or actions, as shown in a flow chart of this disclosure, mayoccur and/or may be performed in any logically coherent order. In someexamples, at least two of the events or actions shown may occur or maybe performed at least in part simultaneously and/or in parallel. In someexamples, one or more additional events or actions may occur or may beperformed prior to, after, or in between the events or actions shown inthe flow charts of the present disclosure.

FIG. 50 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure. At 5010, a wirelessdevice may receive configuration parameters comprising firstconfiguration parameters of a first search space and secondconfiguration parameters of a second search space. The configurationparameters may comprise at least one configuration parameter indicatingthat the first search space and the second search space are usedtogether for reception of downlink control information (DCI). At 5020,the wireless device may receive, via a downlink control channel andbased on the first configuration parameters of the first search space, afirst signal associated with a first DCI. At 5030, the wireless devicemay receive, via the downlink control channel and based on the secondconfiguration parameters of the second search space, a second signalassociated with a repetition of the first DCI. At 5040, the wirelessdevice may transmit or may receive a transport block based on the firstDCI.

In an example embodiment, the wireless device may determine the firstDCI based on the first signal, received at 5020, and the second signalreceived at 5030.

In an example embodiment, the first DCI may comprise schedulinginformation. The transmitting or the receiving the transport block, at5040, may be based on the scheduling information.

In an example embodiment, the first search space may be associated witha first control resource set (CORESET). The second search space may beassociated with a second CORESET. In an example embodiment, a firstvalue of a configuration parameter of the first CORESET may be the sameas a second value of a corresponding configuration parameter of thesecond CORESET.

In an example embodiment, the receiving the first signal, at 5020, maybe based on first resources associated with the first CORESET. Thereceiving the second signal, at 5030, may be based on second resourcesassociated with the second CORESET. In an example embodiment, theconfiguration parameters, received at 5010, may comprise first CORESETconfiguration parameters, of the first CORESET, indicating the firstresources, and second CORESET configuration parameters, of the secondCORESET, indicating the second resources. In an example embodiment, thefirst CORESET may be for a first cell and the second CORESET may be fora second cell. In an example embodiment, the first CORESET may be for afirst bandwidth part (BWP) and the second CORESET may be for a secondBWP. In an example embodiment, the first CORESET and the second CORESETmay be in the same slot. In an example embodiment, the first CORESET andthe second CORESET may be in different slots. In an example embodiment,the first configuration parameters of the first search space, receivedat 5010, may comprise a first parameter indicating a first identifier ofthe first CORESET. The second configuration parameters of the secondsearch space, received at 5010, may comprise a second parameterindicating a second identifier of the second CORESET. In an exampleembodiment, the first CORESET may be associated with a firsttransmission configuration indicator (TCI) state. The second CORESET maybe associated with a second TCI state.

In an example embodiment, the first configuration parameters of thefirst search space, received at 5010, may comprise the at least oneconfiguration parameter.

In an example embodiment, the first search space and the second searchspace may be wireless device specific search spaces. In an exampleembodiment, the first search space may be associated with a firstcontrol resource set (CORESET). The second search space may beassociated with a second CORESET. In an example embodiment, the firstCORESET and the second CORESET may be in the same slot. In an exampleembodiment, the first CORESET and the second CORESET may be in differentslots.

In an example embodiment, the first search space and the second searchspace may be common search spaces. In an example embodiment, the firstsearch space may be associated with a first control resource set(CORESET). The second search space may be associated with a secondCORESET. In an example embodiment, the first CORESET and the secondCORESET may be in the same slot. In an example embodiment, the firstCORESET and the second CORESET may be in different slots.

In an example embodiment, a parameter in the first configurationparameters of the first search space, received at 5010, may have thesame value as a corresponding parameter in the second configurationparameters of the second search space received at 5010. In an exampleembodiment, the first search space may be associated with a firstcontrol resource set (CORESET). The second search space may beassociated with a second CORESET. In an example embodiment, the firstCORESET and the second CORESET may be in the same slot. In an exampleembodiment, the first CORESET and the second CORESET may be in differentslots.

In an example embodiment, the wireless device may determine the secondsearch space for receiving the second signal in response to receivingthe first signal and based on the at least one configuration parameterindicating that the first search space and the second search space areused together for reception of downlink control information (DCI). In anexample embodiment, the wireless device may determine to monitor thesecond search space for receiving the second signal in response toreceiving the first signal and based on the at least one configurationparameter indicating that the first search space and the second searchspace are used together for reception of downlink control information(DCI).

In an example embodiment, a first value of a configuration parameter ofthe first search space, received at 5010, may be the same as a secondvalue of a corresponding configuration parameter of the second searchspace received at 5010.

FIG. 51 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure. At 5110, a wirelessdevice may receive first configuration parameters of a first searchspace and second configuration parameters of a second search space. At5120, the wireless device may receive via a downlink control channel andbased on the first configuration parameters of the first search space, afirst signal associated with a downlink control information (DCI). At5130, the wireless device may receive, via the downlink control channeland based on the second configuration parameters of the second searchspace, a second signal associated with a repetition of the DCI. A firstvalue of a configuration parameter of the first search space is the sameas a second value of a corresponding configuration parameter of thesecond search space. The wireless device may transmit or may receive atransport block based on the DCI.

In an example embodiment, the wireless device may determine the DCIbased on the first signal, received 5120, and the second signal receivedat 5130.

In an example embodiment, the DCI may comprise scheduling information.The transmitting or the receiving the transport block, at 5140, may bebased on the scheduling information.

In an example embodiment, the first search space may be associated witha first control resource set (CORESET). The second search space may beassociated with a second CORESET. In an example embodiment, thereceiving the first signal may be based on first resources associatedwith the first CORESET. The receiving the second signal may be based onsecond radio resources associated with the second CORESET. In an exampleembodiment, the wireless device may receive: first CORESET configurationparameters, of the first CORESET, indicating the first resources, andsecond CORESET configuration parameters, of the second CORESET,indicating the second resources. In an example embodiment, the firstCORESET may be for a first cell and the second CORESET may be for asecond cell. In an example embodiment, the first CORESET may be for afirst bandwidth part (BWP) and the second CORESET may be for a secondBWP. In an example embodiment, the first CORESET and the second CORESETmay be in the same slot. In an example embodiment, the first CORESET andthe second CORESET may be in different slots.

In an example embodiment, the wireless device may receive at least oneconfiguration parameter indicating that the first search space and thesecond search space are used together for reception of downlink controlinformation (DCI).

In an example embodiment, the first value of the configuration parameterof the first search space may indicate a first identifier. The secondvalue of the corresponding configuration parameter of the second searchspace may indicate a second identifier.

FIG. 52 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure. At 5210, a wirelessdevice may receive: first configuration parameters of a first searchspace associated with a first control resource set (CORESET), and secondconfiguration parameters of a second search space associated with asecond CORESET. At 5220, the wireless device may receive, via a downlinkcontrol channel and based on the first configuration parameters of thefirst search space, a first signal associated with a downlink controlinformation (DCI). At 5230, the wireless device may receive, via thedownlink control channel and based on the second configurationparameters of the second search space, a second signal associated with arepetition of the DCI. A first value of a configuration parameter of thefirst CORESET may be the same as a second value of a correspondingconfiguration parameter of the second CORESET. At 5240, the wirelessdevice may transmit or may receive a transport block based on the DCI.

In an example embodiment, the receiving the first signal, at 5220, basedon the first configuration parameters of the first search space and thereceiving the second signal, at 5230, based on the second configurationparameters of the second search space may be based on the first value ofthe configuration parameter of the first CORESET being the same as thesecond value of the corresponding configuration parameter of the secondCORESET.

In an example embodiment, the wireless device may determine the DCIbased on the first signal, received at 5220, and the second signalreceived at 5230.

In an example embodiment, the DCI may comprise scheduling information.The transmitting or the receiving the transport block, at 5240, may bebased on the scheduling information.

In an example embodiment, the receiving the first signal, at 5220, maybe based on first resources associated with the first CORESET. Thereceiving the second signal, at 5230, may be based on second radioresources associated with the second CORESET. In an example embodiment,the wireless device may receive: first CORESET configuration parameters,of the first CORESET, indicating the first resources, and second CORESETconfiguration parameters, of the second CORESET, indicating the secondresources. In an example embodiment, the first CORESET may be for afirst cell and the second CORESET may be for a second cell. In anexample embodiment, the first CORESET may be for a first bandwidth part(BWP) and the second CORESET may be for a second BWP. In an exampleembodiment, the first CORESET and the second CORESET may be in the sameslot. In an example embodiment, the first CORESET and the second CORESETmay be in different slots.

In an example embodiment, the wireless device may receive at least oneconfiguration parameter indicating that the first search space and thesecond search space are used together for reception of DCI.

In an example embodiment, the first value of the configuration parameterof the first CORESET may indicate a first identifier. The second valueof the corresponding configuration parameter of the second CORESET mayindicate a second identifier. In an example embodiment, the firstidentifier may be associated with a first CORESET pool. The secondidentifier may be associated with a second CORESET pool. In an exampleembodiment, the first identifier may be associated with a firsttransmission configuration indicator (TCI) state. The second identifiermay be associated with a second TCI state.

FIG. 53 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure. At 5310, a wirelessdevice may receive first configuration parameters of a first searchspace and second configuration parameters of a second search space. At5320, the wireless device may receive, via a downlink control channeland based on the first configuration parameters of the first searchspace, a first signal associated with a downlink control information(DCI). At 5330, the wireless device may receive, via the downlinkcontrol channel and based on the second configuration parameters of thesecond search space, a second signal associated with a repetition of theDCI. At 5340, the wireless device may ignore at least one of the firstsignal and the second signal based on a first value of a configurationparameter of the first search space being different from a second valueof a corresponding configuration parameter of the second search space.

In an example embodiment, the wireless device may determine the DCIbased on the first signal, received at 5320, and not based on the secondsignal received at 5330.

In an example embodiment, the first search space may be associated witha first control resource set (CORESET). The second search space may beassociated with a second CORESET. In an example embodiment, thereceiving the first signal, at 5320, may be based on first resourcesassociated with the first CORESET; and the receiving the second signalmay be based on second radio resources associated with the secondCORESET. In an example embodiment, the wireless device may receive:first CORESET configuration parameters, of the first CORESET, indicatingthe first resources; and second CORESET configuration parameters, of thesecond CORESET, indicating the second resources. In an exampleembodiment, the first CORESET may be for a first cell and the secondCORESET may be for a second cell. In an example embodiment, the firstCORESET may be for a first bandwidth part (BWP) and the second CORESETis for a second BWP. In an example embodiment, the first CORESET and thesecond CORESET are in the same slot. In an example embodiment, the firstCORESET and the second CORESET may be in different slots.

In an example embodiment, the first value of the configuration parameterof the first search space may indicate a first identifier. The secondvalue of the corresponding configuration parameter of the second searchspace may indicate a second identifier.

FIG. 54 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure. At 5410, a wirelessdevice may receive first configuration parameters of a first searchspace, associated with a first control resource set (CORESET) and secondconfiguration parameters of a second search space associated with asecond CORESET. At 5420, the wireless device may receive, via a downlinkcontrol channel and based on the first configuration parameters of thefirst search space, a first signal associated with a downlink controlinformation (DCI). At 5430, the wireless device may receive, via thedownlink control channel and based on the second configurationparameters of the second search space, a second signal associated with arepetition of the DCI. At 5440, the wireless device may ignore at leastone of the first signal and the second signal based on a first value ofa configuration parameter of the first CORESET being different from asecond value of a corresponding configuration parameter of the secondCORESET.

In an example embodiment, the wireless device may determine the DCIbased on the first signal, received at 5420, and not based on the secondsignal received at 5430.

In an example embodiment, the receiving the first signal, at 5420, maybe based on first resources associated with the first CORESET. Thereceiving the second signal may be based on second radio resourcesassociated with the second CORESET. In an example embodiment, thewireless device may receive first CORESET configuration parameters, ofthe first CORESET, indicating the first resources. The wireless devicemay receive second CORESET configuration parameters, of the secondCORESET, indicating the second resources. In an example embodiment, thefirst CORESET may be for a first cell and the second CORESET may be fora second cell. In an example embodiment, the first CORESET may be for afirst bandwidth part (BWP) and the second CORESET may be for a secondBWP.

In an example embodiment, the first CORESET and the second CORESET maybe in the same slot.

In an example embodiment, the first CORESET and the second CORESET maybe in different slots.

In an example embodiment, the first value of the configuration parameterof the first CORESET may indicate a first identifier. The second valueof the corresponding configuration parameter of the second CORESET mayindicate a second identifier. In an example embodiment, the firstidentifier may be associated with a first CORESET pool. The secondidentifier may be associated with a second CORESET pool. In an exampleembodiment, the first identifier may be associated with a firsttransmission configuration indicator (TCI) state. The second identifiermay be associated with a second TCI state.

FIG. 55 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure. At 5510, a wirelessdevice may transmit, to a base station, a capability message comprisingan information element indicating a minimum number of symbols to apply aspatial quasi-colocation (QCL) information. At 5520, the wireless devicemay receive configuration parameters, of a first control resource set(CORESET) and a second CORESET, indicating one or more first symbols forthe first CORESET and one or more second symbols for the second CORESET.At 5530, the wireless device may receive, based on the first CORESET andduring the one or more first symbols, a first signal associated with adownlink control information (DCI). At 5540, the wireless device mayreceive, based on the second CORESET and during the one or more secondsymbols, a second signal associated with a repetition of the DCI. At5550, the wireless device may determine the DCI based on the firstsignal and the second signal. At 5560, the wireless device may receive atransport block based on the DCI. A duration between a last symbol ofthe one or more second symbols and the transport block may be largerthan the minimum number of symbols.

In an example embodiment, the minimum number of symbols, indicated by avalue of the information element, may be required by the wireless deviceto perform a downlink control channel reception and to apply the spatialQCL information received in a downlink control information forprocessing a downlink data channel.

In an example embodiment, at least one symbol of the one or more secondsymbols may be after the one or more first symbols.

In an example embodiment, the one or more first symbols may be in afirst slot and the one or more second symbols are in a second slot.

In an example embodiment, the DCI, determined at 5550, may indicate atransmission configuration indicator (TCI) state indicating a spatialQCL.

In an example embodiment, the receiving the transport block, at 5560,may be based on the duration between the last symbol of the one or moresecond symbols and the transport block being larger than the minimumnumber of symbols.

FIG. 56 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure. At 5610, a wirelessdevice may receive configuration parameters comprising: firstconfiguration parameters of a first control resource set (CORESET) and asecond CORESET, indicating one or more first symbols for the firstCORESET and one or more second symbols for the second CORESET; and asecond configuration parameter indicating a value of a discontinuousreception (DRX) timer. At 5620, the wireless device may receive, basedon the first CORESET and during the one or more first symbols, a firstsignal associated with a first downlink control information (DCI). At5630, the wireless device may receive, based on the second CORESET andduring the one or more second symbols, a second signal associated with arepetition of the first DCI. At 5640, the wireless device may determinethe first DCI based on the first signal and the second signal. At 5650,the wireless device may start the DRX timer after a last symbol of theone or more second symbols.

In an example embodiment, the wireless device may receive a second DCIwhile the DRX timer is running.

In an example embodiment, the DRX timer may be an inactivity timer.

In an example embodiment, at least one symbol of the one or more secondsymbols may be after the one or more first symbols.

In an example embodiment, the one or more first symbols may be in afirst slot and the one or more second symbols may be in a second slot.

FIG. 57 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure. At 5710, a wirelessdevice may receive configuration parameters comprising: a first radionetwork temporary identifier (RNTI); discontinuous reception (DRX)configuration parameters; and random access configuration parameters. At5720, the wireless device may transmit a random access preamble inresponse to initiating a random access process and based on the randomaccess configuration parameters. At 5730, the wireless device mayreceive a random access response (RAR) based on the transmitting therandom access preamble. At 5740, the wireless device may determine thatthe wireless device is in a DRX active time after the receiving the RARand until a plurality of signals associated with a downlink controlinformation (DCI) are received, wherein the DCI may be associated withthe first RNTI. At 5750, the wireless device may receive the pluralityof signals.

FIG. 58 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure. At 5810, a wirelessdevice may receive a configuration parameter indicating a first value ofa deactivation timer of a secondary cell. At 5820, the wireless devicemay receive a plurality of signals, associated with a downlink controlinformation. At 5830, the wireless device may determine, based on theplurality of signals, the downlink control information comprisingscheduling information. At 5840, the wireless device may, based on thescheduling information indicating an uplink grant or downlinkassignment, start the deactivation timer with the first value. At 5850,the wireless device may deactivate the secondary cell based on thedeactivation timer expiring.

In an example embodiment, the uplink grant or the downlink assignment isfor the secondary cell.

In an example embodiment, the receiving the plurality of signals, at5820, may be via the secondary cell.

In an example embodiment, the staring the deactivation timer may beafter a first number of symbols from the last signal in the plurality ofsignals.

In an example embodiment, first radio resources, associated with a firstsignal in the plurality of signals received at 5820, may span one ormore first symbols. Second radio resources, associated with a secondsignal in the plurality of signals received at 5820, may span one ormore second symbols. The staring the deactivation timer, at 5840, may beafter a first number of symbols from a last symbol in the one or moresecond symbols.

Various exemplary embodiments of the disclosed technology are presentedas example implementations and/or practices of the disclosed technology.The exemplary embodiments disclosed herein are not intended to limit thescope. Persons of ordinary skill in the art will appreciate that variouschanges can be made to the disclosed embodiments without departure fromthe scope. After studying the exemplary embodiments of the disclosedtechnology, alternative aspects, features and/or embodiments will becomeapparent to one of ordinary skill in the art. Without departing from thescope, various elements or features from the exemplary embodiments maybe combined to create additional embodiments. The exemplary embodimentsare described with reference to the drawings. The figures and theflowcharts that demonstrate the benefits and/or functions of variousaspects of the disclosed technology are presented for illustrationpurposes only. The disclosed technology can be flexibly configuredand/or reconfigured such that one or more elements of the disclosedembodiments may be employed in alternative ways. For example, an elementmay be optionally used in some embodiments or the order of actionslisted in a flowchart may be changed without departure from the scope.

An example embodiment of the disclosed technology may be configured tobe performed when deemed necessary, for example, based on one or moreconditions in a wireless device, a base station, a radio and/or corenetwork configuration, a combination thereof and/or alike. For example,an example embodiment may be performed when the one or more conditionsare met. Example one or more conditions may be one or moreconfigurations of the wireless device and/or base station, traffic loadand/or type, service type, battery power, a combination of thereofand/or alike. In some scenarios and based on the one or more conditions,one or more features of an example embodiment may be implementedselectively.

In this disclosure, the articles “a” and “an” used before a group of oneor more words are to be understood as “at least one” or “one or more” ofwhat the group of the one or more words indicate. The use of the term“may” before a phrase is to be understood as indicating that the phraseis an example of one of a plurality of useful alternatives that may beemployed in an embodiment in this disclosure.

In this disclosure, an element may be described using the terms“comprises”, “includes” or “consists of” in combination with a list ofone or more components. Using the terms “comprises” or “includes”indicates that the one or more components are not an exhaustive list forthe description of the element and do not exclude components other thanthe one or more components. Using the term “consists of” indicates thatthe one or more components is a complete list for description of theelement. In this disclosure, the term “based on” is intended to mean“based at least in part on”. The term “based on” is not intended to mean“based only on”. In this disclosure, the term “and/or” used in a list ofelements indicates any possible combination of the listed elements. Forexample, “X, Y, and/or Z” indicates X; Y; Z; X and Y; X and Z; Y and Z;or X, Y, and Z.

Some elements in this disclosure may be described by using the term“may” in combination with a plurality of features. For brevity and easeof description, this disclosure may not include all possiblepermutations of the plurality of features. By using the term “may” incombination with the plurality of features, it is to be understood thatall permutations of the plurality of features are being disclosed. Forexample, by using the term “may” for description of an element with fourpossible features, the element is being described for all fifteenpermutations of the four possible features. The fifteen permutationsinclude one permutation with all four possible features, fourpermutations with any three features of the four possible features, sixpermutations with any two features of the four possible features andfour permutations with any one feature of the four possible features.

Although mathematically a set may be an empty set, the term set used inthis disclosure is a nonempty set. Set B is a subset of set A if everyelement of set B is in set A. Although mathematically a set has an emptysubset, a subset of a set is to be interpreted as a non-empty subset inthis disclosure. For example, for set A={subcarrier1, subcarrier2}, thesubsets are {subcarrier1}, {subcarrier2} and {subcarrier1, subcarrier2}.

In this disclosure, the phrase “based on” may be used equally with“based at least on” and what follows “based on” or “based at least on”indicates an example of one of plurality of useful alternatives that maybe used in an embodiment in this disclosure. The phrase “in response to”may be used equally with “in response at least to” and what follows “inresponse to” or “in response at least to” indicates an example of one ofplurality of useful alternatives that may be used in an embodiment inthis disclosure. The phrase “depending on” may be used equally with“depending at least on” and what follows “depending on” or “depending atleast on” indicates an example of one of plurality of usefulalternatives that may be used in an embodiment in this disclosure. Thephrases “employing” and “using” and “employing at least” and “using atleast” may be used equally in this in this disclosure and what follows“employing” or “using” or “employing at least” or “using at least”indicates an example of one of plurality of useful alternatives that maybe used in an embodiment in this disclosure.

The example embodiments disclosed in this disclosure may be implementedusing a modular architecture comprising a plurality of modules. A modulemay be defined in terms of one or more functions and may be connected toone or more other elements and/or modules. A module may be implementedin hardware, software, firmware, one or more biological elements (e.g.,an organic computing device and/or a neurocomputer) and/or a combinationthereof and/or alike. Example implementations of a module may be assoftware code configured to be executed by hardware and/or a modelingand simulation program that may be coupled with hardware. In an example,a module may be implemented using general-purpose or special-purposeprocessors, digital signal processors (DSPs), microprocessors,microcontrollers, application-specific integrated circuits (ASICs),programmable logic devices (PLDs) and/or alike. The hardware may beprogrammed using machine language, assembly language, high-levellanguage (e.g., Python, FORTRAN, C, C++ or the like) and/or alike. In anexample, the function of a module may be achieved by using a combinationof the mentioned implementation methods.

What is claimed is:
 1. A method comprising: receiving, by a wirelessdevice: at least one first configuration parameter indicating that afirst search space and a second search space are used together forreception of downlink control information; and a second configurationparameter indicating a value of a discontinuous reception (DRX) timer;receiving first downlink control information based on: monitoring in acontrol resource set (CORESET) based on the first search space and inone or more first symbols; and monitoring in a CORESET based on thesecond search space and in one or more second symbols that are after theone or more first symbols; and starting the DRX timer with the value ina third symbol that is after the one or more second symbols.
 2. Themethod of claim 1, wherein: the first search space is associated with afirst CORESET; and the second search space is associated with a secondCORESET.
 3. The method of claim 1, wherein the DRX timer is a DRXinactivity timer.
 4. The method of claim 3, wherein the wireless deviceis in a DRX Active time while the DRX inactivity timer is running. 5.The method of claim 1, wherein the first search space and the secondsearch space are wireless device specific search spaces.
 6. The methodof claim 1, wherein the first search space and the second search spaceare common search spaces.
 7. The method of claim 1, wherein a parameterin first configuration parameters of the first search space has the samevalue as a corresponding parameter in second configuration parameters ofthe second search space.
 8. A wireless device comprising: one or moreprocessors; and memory storing instructions that, when executed by theone or more processors, cause the wireless device to: receive: at leastone first configuration parameter indicating that a first search spaceand a second search space are used together for reception of downlinkcontrol information; and a second configuration parameter indicating avalue of a discontinuous reception (DRX) timer; receive first downlinkcontrol information based on: monitoring in a control resource set(CORESET) based on the first search space and in one or more firstsymbols; and monitoring in a CORESET based on the second search spaceand in one or more second symbols that are after the one or more firstsymbols; and start the DRX timer with the value in a third symbol thatis after the one or more second symbols.
 9. The wireless device of claim8, wherein: the first search space is associated with a first CORESET;and the second search space is associated with a second CORESET.
 10. Thewireless device of claim 8, wherein the DRX timer is a DRX inactivitytimer.
 11. The wireless device of claim 10, wherein the wireless deviceis in a DRX Active time while the DRX inactivity timer is running. 12.The wireless device of claim 8, wherein the first search space and thesecond search space are wireless device specific search spaces.
 13. Thewireless device of claim 8, wherein the first search space and thesecond search space are common search spaces.
 14. The wireless device ofclaim 8, wherein a parameter in first configuration parameters of thefirst search space has the same value as a corresponding parameter insecond configuration parameters of the second search space.
 15. A systemcomprising: a base station; and a wireless device comprising: one ormore processors; and memory storing instructions that, when executed bythe one or more processors, cause the wireless device to: receive, fromthe base station: at least one first configuration parameter indicatingthat a first search space and a second search space are used togetherfor reception of downlink control information; and a secondconfiguration parameter indicating a value of a discontinuous reception(DRX) timer; receive first downlink control information based on:monitoring in a control resource set (CORESET) based on the first searchspace and in one or more first symbols; and monitoring in a CORESETbased on the second search space and in one or more second symbols thatare after the one or more first symbols; and start the DRX timer withthe value in a third symbol that is after the one or more secondsymbols.
 16. The system of claim 15, wherein: the first search space isassociated with a first CORESET; and the second search space isassociated with a second CORESET.
 17. The system of claim 15, whereinthe DRX timer is a DRX inactivity timer.
 18. The system of claim 17,wherein the wireless device is in a DRX Active time while the DRXinactivity timer is running.
 19. The system of claim 15, wherein thefirst search space and the second search space are wireless devicespecific search spaces.
 20. The system of claim 15, wherein a parameterin first configuration parameters of the first search space has the samevalue as a corresponding parameter in second configuration parameters ofthe second search space.